You forgot a really simple solution; Outfarm them; this isn't even a problem regardless of your damage output. If you know the timing for spawns and where to be you can be killing pulls as they spawn. You may like the mindless farming but someone who can farm better should get the spot. I don't ask them to leave, I don't ask permission, I don't flag pvp to kill them, and I don't stop if they kill me. I simply outfarm people via paying attention. So the problem you are having is easily solved; farm better. The game is competitive in multiple ways. One of these ways is grinding locations / farming, money making etc. You want it? You have to fight for it. You have no "right" to any location in the game. You do, however, have a right to fight for it. You can pvp and suffer your Karma dropping. You can ask if you so please. You can invite them. You can just be better than them. I can't tell you how many times I've had someone come into a spot I'm farming and try to claim in. I don't pay them any mind and they make no impact on my methods because, oh yeah, I've been farming in mmo's for over a decade. One tried and true method; outfarm them. You have 4 people and one person comes in and messes it up? Are you serious? One random person can ruin your entire spot? Camp the spawn locations, learn the respawn times, remember your killing "rotation" so you stay ahead. Don't be running from one side of the map to the other to kill one pull. Each pull should be within reach of your next so that you can chain pull. This is basic 101 farming/grinding. If one person can come in and mess up your whole rotation then your rotation is poorly planned and you need to rethink it.