jack
The Legendary Troll King
Oh I expect even in your game there are a couple of jokers who band together to cause trouble. It's inevitable. Kinda like trolls.
No, it's pretty tightly controlled, and the mods kill you in a minute. Once you've invested some time in it, that becomes precious, so you tend to stay in the rules of the game.
We don't prank that I know of, and "trolls" are dealt with pretty harshly by guildmembers. Seriously, it takes a lot of effort and energy to level up, and the punishment for screwing around is losing lots and lots of levels on a coordinated effort by fellow members of your guild.
I'm in the seventh best/most experienced/powerful guild in the game, so it's easy to organize stiff retaliation for bs.
Different than other games, it would appear.