I've been playing MMO's for a few years now and have played a lot of them. EQ2, WoW, AoC, CoH, DCUO, Eve and more. I've come to the conclusion that the community in this game is the worst I've seen.
It seems to be common practice on my server for players to come into a group of mobs I'm fighting and try to pick off the untagged ones. I don't mean when my health is low and they might think of helping me, but just to take some of my mobs.
Often I'm about to send my companion, or am about to go in myself and I find another char pulling the mobs from further away. Or I'll clear the mobs around a quest object, only to have another player pick it up while I'm fighting.
I wondered at first if it was just that a lot people playing this game seem to never have played an MMO before and were just unaware of the etiquette, but after a month or so of playing, I've come to the conclusion that they're just rude.
Never would I have thought that I'd greet the sight of a green solo zone with such relief as I do now.
I'd like to think that as the game matures those people will fall by the wayside, lured by shiner newer things, but right now, its really hard to convince myself I want to keep playing long term.