Lets take a good look at just how similar DFS is to Karma Bombing.

I wanted the spot, everywhere was crowded.  It was the premium spot.

That's why I said DFS and when they refused I tried to mob feed them.

That's why I Karma Bombed them, the server was congested and I wanted the spot.

In this case BOTH players are doing the SAME thing just using different tactics

I believe the strongest deserve the spot and that's the way the game was designed.

My opponent refused to duel so I attempted to kill them.  I'm stronger so I deserve the spot.

I thought I could out last my opponent.  I could endure more and play smarter to take the spot.

Once again both players have the SAME mentality, but use different tactics.

Notice I'm not really talking about mutually accepted duels.  I'm talking about the mentality and actions of players who attempt to PK and mob feed.  In nearly every circumstance they are identical.

In ALL cases one player is trying to impose upon another

In ALL cases there is no consideration given to other players

In ALL cases each player is doing what they feel is effective to achieve their goal.

So there has to be some consistency here.  Either BOTH are bad or neither is bad.  If either is unwanted BOTH are unwanted.

Nope i disagree

just because you're strong doesnt mean you're entitled to be an asshole and take what ever you want from somone with no repecussions 

any 'dfs' requests quickly get rejected by me. The spot is mine and you have two options, take it from me and go red in the process or be respectful and just find another spot 

just because you're playing a game doesnt give you an excuse to be an asshole and expect everyone below you bow before you 

its the same reason you dont see people beating the crap out of somone in the park and saying 'spot taken' when the other guy is lying on the ground 

but, you're also free to do that irl, you'll find you'll also get 'greifed' by either the other guy pulling a weapon or law enforcement 

I agree with you on this. Usually if I'm grinding an area and a person comes along and ask me how long, I'll give them buff duration ask them if they want to group for the duration and leave after my buffs or Agris is gone. I don't and won't duel (If I was there first) and have no problem logging in on one of my combat alts to break their crystals and such after they turn red from killing my Shai or alt. I've even gottten PvP friends and enemy guilds involved dependent on how bad they have pissed me off.

Game was made for you to flag up, it was also made for me to karma bomb, that's the curse and the blessing that is BDO.

You're being disingenuous here and can't tell if it's intentional or not so let me break this down for you:

"In ALL cases one player is trying to impose upon another" - False

DFS is an offer, not an imposition. That why refusing is option by definition.

"In ALL cases there is no consideration given to other players" - False

The very act of DFS is consideration since the alternative is just flagging up and killing them or karma bombing from the start. If you intend to take a spot regardless of whether or not they agree to fight for it, then what's the point of even asking? 

"In ALL cases each player is doing what they feel is effective to achieve their goal."- True

Yeah....duh.

Asking for a "Duel for spot" means if they refuse, you leave; they agree and you lose, you leave. You're not comparing DFS to karma bombing. It's more like you're comparing the mentality of a karma bomber and someone who say "dfs?" just to be "nice about it". I'm not saying there's anything wrong with just taking what you want cause you can, that's how this game is, but in your examples (I'll respectfully assume you weren't talking about yourself) it'd seem like even if the other person agreed to fight and won, you'd stay there and karma bomb anyway. So, again, if that's what you're gonna do, then why bother even asking for a fight?

Current states right now idk how devs will change this, this bother a lots of player since release and it keep getting worse,

i have the deep experience on "DFS" as never accept any offer of that, when they ask DFS you will expect they reject that, but my case is when i reject they just kill me, then karma bombing them, end up got 6 guild decs and my guildmate even selling out my location to other guild to hunting me, they reason i'm will reject all DFS + being guildless. Some guild really abuse that declar guild system.

DFS is gentlemans agreement. both parties have to actually agree to the terms. 

with the gear disparity and class balance issues in 1v1 i am not really surprised some people give middle finger to the dfs idea.

Everyone can safely ignore any statement from OP because he has been this last 5 years managing to constantly virtue signal and lecture everyone about morals while bragging how toxic he is and how big a griefer he is.

This "user" is so toxic that since 2016 he had to use no less than 4 different forum usernames in order to escape the consequences of his behavior.

He even admitted publicly on Kakao forum that his goal is cause trouble amongst the BDO community in order to harm it since he hates BDO and everything related to it, including its staff and its community members.

Problem with the mentality of wanting the spot because your more geared is a form of bullying someone out of a spot cause you know you can not so much because you have the right to the spot. This mentality discourges new players from even wanting to play the game which results in an unhealth enviroment for new players which will affects the game's population if left uncheck by some form of mechanic. That check mechanic comes in the form of the karma system its why it designed, to solely to stop this mentality to give lower geared/newer players a chance to defend their spot. 

So really there isn't consistent with that form of mind set. That form mind set is someone trying to force their will onto someone elses cause they know they have the gear to do so. The one defending his spot is just using the only mechanic he physically can to defend his spot from the one trying to force his will onto someone else. An that will is if I out gear you than you shouldn't be allowed to play the game.

That mind set espeically problematic when you take in not only gear difference but the current unbalanced state of PVP in BDO. Sense such a mind set if left unchecked would result in underpowered classes never being played sense it would be physically impossible not just because of gear but because how underpowered your class is compared to your opponent to win the fight. After all how is a shai suppose to kill anyone even if they out gear them in this game with it kit that not even designed for killing other players? Last I checked 300% combat XP increase from gathering doesn't do a whole lot as a passive in killing another player, unless the fight is to see who can reach lvl 60 faster by gathering only.