This does not solve the present day issue of a player interrupting a grind you've been actively pursuing while you are running buffs and they are not. If the player is guildless or their guild is undeccable or they are under protection, you are just getting griefed.

Griefers example when they want a spot an choose to drop gear an to make someone negative karma kekw:

https://www.reddit.com/r/PublicFreakout/comments/gq5ox7/karen_sits_on_a_womans_car_to_prevent_her_from/

Edit: This is what the current karma system causes.

Actually yes, it is the spot of the person on it.

Show me where in the Operational Policy of ToS, or even in the game mechanics it self where the devs said "the spot belongs to the person on it".  You can't.  The fact of the matter is = Spots are not "owned" -- they're "occupied".  If you don't know the difference, IDK how to help you.

If I wanna park my car, I'm not gonna find the guy to tell him "I want that spot and my car is bigger and faster so move out!"

The spot is taken so it's my problem to find another one, as it's civilized to park somewhere else and not dfs another driver.

Same mechanics as in life: first come first serve.

So I will definitely not agree with this lack of courtesy in the game you're talking about.

I already mentioned courtesy in my previous post.  The car parking example is a false equivalency because grind spots in BDO are huge and can physically contain large groups of people -- a parking stall only accomodates ONE car.  First come first served, in regards to BDO grind zones, is courtesy and I believe in that as grind spot etiquette -- but the FACT is, that it DOESN'T HAVE TO be this way.  You can contest grind spots, in fact, many if not most GVG are born out of grind spot conflicts.  Grind spot conflicts are NORMAL and allowed -- it is GRIEFING (abusing the Karma System, for example) that is the problem becuase it exploits a hole in the system, using the Karma System in ways it is NOT intended.

I already mentionned Marni's. Please read more carefully.

I proposed another system in addition where every player could validate a grinding zone for 1 hour. It would be renewable since it would not be in an instance but in the open world. So for every hour that a guy (or a group) wanna farm, he would have to validate his zone every hour.

The devs specified that BDO's game-world is a "wide open field".  Your proposal fails because it goes against that concept.  I can link you the dev quote later, SEA site is down and that's where the quote is.

It's not band-aids, it's a definitive solution against players who wanna come and steal the spot of the one already farming without annoying anybody.

It's a band-aid because it does not solve the issue from it's root, instead, is an additional layer on top to cover it up.  That's the literal definition of a band-aid, bruh.  Try again.

By Wiktionary: One who griefs: a player who plays a game primarily to reduce other players’ enjoyment of it.

By Wikipedia: A griefer derives pleasure primarily, or exclusively, from the act of annoying other users, and as such, is a particular nuisance in online gaming communities. Griefing usually involves using aspects of the game in unintended ways to annoy other players.

-> "using aspects of the game": you talk about karma bombing because it arranges you but the truth is people overgeared use their overgear to take away the spot and the fun of another player.

Don't you dare tell me to read better when you obviously don't read instances in where guildless players abuse Karma to their advantage to grief.  But you're a nobody, popular streamers know about it -- hell, even the DEVS know about it, so you hold little weight here and your input means close to nothing.

"However, we've heard stories from certain regions where the Karma system is being abused."

THAT is the 1st aspect of the game you use permanently, by pking and harassing! And the 2nd aspect u use, it's blackmailing: "accept dfs or gvg!" So people like you use even more the mechanics of the games toward innocent players trying to play quietly by their side after they took the time already to find a free spot, maybe to avoid any conflict or pvp (which YOU bring!) or perhaps because they don't wanna ruin the farm of other players so they took the necessary time for that, the time YOU won't take! You stop other players to have fun and trying to get a better gear because YOU have decided so and you let them no choice! It's you who annoy them when you kill them during their grinding time and YOU ARE the griefer there, not the other way around, destroying their game, their buffs, their farm and their play time.

Protecting against this is what the Karma System is intended to prevent.  The issues being brought up are ways the Karma System can be exploited.  Try to keep up.

By reverso: According to Oxford Dictionaries, a "griefer" is "a person who harasses or deliberately provokes other players or members [of an online game or community] in order to spoil their enjoyment."

-> once again, exactly what does a guy coming on purpose to ruin the farm of another player, without any consideration other than their own.

Again, stay on topic.  I know it's hard for you, but try harder, you're not on topic.

In real life nobody would be toxic that way. Nor while parking a car, neither in the supermarket where a smaller person is before you. Would you dfs him so you would take his spot and go out faster of the shop?

If you're civilized usually, how come you're not in the game?

If someone is using a public bathroom stall, do you enter the bathroom stall and try to sit on the same toilet they are using?

If someone is sitting on a public chair at a bar, do you sit in their lap?

I can think of dumb comparisons to IRL too, you know.

Griefers like that are toxic. Definitely. Let the people farm quietly and kindly on their spots already. And if you don't, call yourself a griefer!

Griefing in BDO can come in multiple forms.  PK is griefing, yes, and that is what Karma is supposed to protect against.  Grind spot griefing is another form and the Karma System is used as leverage in order to do this type of griefing.  Zeroden explained it well.  Tansie explained it well (Tansie writes for BD Foundry).  Again, try to keep up with the conversation here.

Karma system is there to avoid that and it's a good thing. No wonder why PA made it... They even made it harder with time. Maybe you should wonder why.

Maybe you should wonder why PA devs admitted the system can be abused and are thinking of ways to fix the abuse.  Here's their quote again, in full context, since keeping up is hard for you:

"As for the Karma system, we have no plans to change the system in any major way. This is because Black Desert exists as one huge field. We feel that the Karma system is a "standard" where we can distinguish between "PvP" and "PK." We will maintain a somewhat free PvP system on the field, but we want to discourage PK. 

However, we've heard stories from certain regions where the Karma system is being abused. We are currently looking into an operational solution to improve on this issue."

Since keeping up is hard for you, I'll disclaimer this by saying:  We ARE NOT against protecting against PK -- what we are for is minimizing or elminating ways the Karma System can be exploited, because in its current form, it is broken.

Griefers example when they want a spot an choose to drop gear an to make someone negative karma kekw:

https://www.reddit.com/r/PublicFreakout/comments/gq5ox7/karen_sits_on_a_womans_car_to_prevent_her_from/

Edit: This is what the current karma system causes.

My responses in bold.

Also, to add:  Your parking stall example is not equivalent to grind spot conflict in BDO for another reason.  How are you going to find the guy who parked there?  They'll already be in the building, away from the stall.  In BDO, the person grinding the spot is clearly seen grinding the rotation.

Since dumb IRL comparisons seem to appeal to you, take this example.  You are using a public toilet at Walmart taking a #2.  You're minding your own business and using the toilet.  People walk in and out of the bathroom, but since you're using the toilet, no one uses the stall you're in.  Then, someone walks into the stall you're using the toilet in and proceeds to try scooting you over and sitting on the same toilet you're using to also take a #2.  If you tell them to leave, they ignore you and continue doing their #2 -- in the SAME toilet you've been using.  Of course, this will make most people upset.  You push them off, but they keep trying to sit with you and just ignore you.  If you get so fed up by this and punch them, YOU get hit with the lawsuit, even if you were the one minding your own business and were just trying to use the toilet on your own like how the toilet is designed to be used.  It's not a two-person toilet --- the toilet seats ONE at a time.

This is how the Karma System is broken.  When abused (KEY WORDS), it protects the person barging in on someone who is "already using the toilet" and punishes the person who was there first.

My responses in bold.

Also, to add:  Your parking stall example is not equivalent to grind spot conflict in BDO for another reason.  How are you going to find the guy who parked there?  They'll already be in the building, away from the stall.  In BDO, the person grinding the spot is clearly seen grinding the rotation.

Since dumb IRL comparisons seem to appeal to you, take this example.  You are using a public toilet at Walmart taking a #2.  You're minding your own business and using the toilet.  People walk in and out of the bathroom, but since you're using the toilet, no one uses the stall you're in.  Then, someone walks into the stall you're using the toilet in and proceeds to try scooting you over and sitting on the same toilet you're using to also take a #2.  If you tell them to leave, they ignore you and continue doing their #2 -- in the SAME toilet you've been using.  Of course, this will make most people upset.  You push them off, but they keep trying to sit with you and just ignore you.  If you get so fed up by this and punch them, YOU get hit with the lawsuit, even if you were the one minding your own business and were just trying to use the toilet on your own like how the toilet is designed to be used.  It's not a two-person toilet --- the toilet seats ONE at a time.

This is how the Karma System is broken.  When abused (KEY WORDS), it protects the person barging in on someone who is "already using the toilet" and punishes the person who was there first.