Reasons why it sucks;
Free loot.
Faceroll bosses. If they require more than 40IQ they get nerfed harder. e.g. *big bug. big eye*
Bad people go in there and just typically suck.
Good people go in there and just typically troll.
People go afk for free loot.
People rage at others when they themselves show they don't know the tactics.
Tank queue times.