Family Name: SiIly

Region (NA/EU): EU

Declaration must be applied to any guild immediately or in 1 min, not like it was 15 minutes.  People who come and start grinding together with you  without any response, just grief you without any reason, they deserve to be banned, even not killed.

To be honest, my suggestion does not address the issue of griefing, as anyone with (PvE) guild will be able to kill your mobs and all we can do either swap or prevent them from grinding too, don't think there is a solution to it except the fact the map is bigger now and lots of options, I feel you and I hate it too.

But my suggestion will (guessing) half of this griefing issue, you will be able to war dec them if they are from pvp guild, if they are not from a pvp guild then they are losing on PvP benifits.

We'll get guild labels when we get first mate sailors.   Been like 2 years since they announced that lol

Yeah, it'd be funny if you dec. them and then they not only farm your mobs but also farm you. This does not fix even half the griefing problem because if they were there to grief you and in a pvp guild to begin with, they'd have already dec'd you. 

The issue here is that if you're in a grind spot first, you shouldn't be having someone farming the mobs without being able to fight it out. The whole grinding rotation is MINE problem would just be fixed if they let you walk in, hit the mobs for 20 mins. and then mark your rotation with some sort of a stone or item that highlights it. Once its marked, you're able to kill the mobs in that zone for an extended period of time. And if anyone else comes in to hit them, they aren't able to attack the mobs or even aggro them. Only if they flag up would the mobs aggro! But all these systems, the process requires resources and if I can think of it, the devs probably thought of it long ago but probably didn't want to invest or someone else stopped it from going through. 

Regarding your first point, if you are afraid of being "farmed" like mobs then join a guild with (PvE) label which means no one will be able to dec you, they can kill you with Alt-c for 2-3 times and its over (current sytems that protect griefers that can kill your mobs), But remember those who can flag, their guilds are open to War Dec so they have their own (fun) issues.

About your whole last point, there is no imaginary solution, the one that worked before was the griefers that walk in into your mobs were considering war dec in mind if they don't ask for dfs, there was a "deterent" but now the winner is who is "most obnoxious", the war dec solution got abused by some guilds that bullied the ones weaker and dodged stronger, the guild labels solves that to a certain degree but not the "walk in mobs rotation" part by PvErs.

Step by step.

For real, a player should be losing karma when he kills a mob defeated by another player if less than one minute has passed since its respawn. 

So about that ..... 

my bad...

seems like they scrapped the whole guild labels idea