I absolutely hate it when other people camp on top. Particularly when there are plenty of other areas open like you said. The last time I went in dynamis, there was a group already in my favourite spot, so I looked for other areas (though any other good spots were taken too) so I had our group only move to our good spot after the first had left.

Of course, after we moved in there, a whole new group came and camped on top of us. They hadnt been in the zone when it was crowded, and when I searched it at the time they came to camp on top, the zone really wasnt crowded anymore. Despite us being there first, they actively tried to force us out by pointing mobs at the whm in our group to mpk us (luckily the whm was just being dualboxed for buffs and I was healing everyone on dnc mainly)

I find it incredibly rude when people do that sort of thing, even though I refuse to do that I know it wont change anything. But then it bothers me when my own group begins saying things like 'well we're gonna have to force them out arent we!' if we ever show up to an area and there's already a group there before us :/