Because the peasents has nothing better to do. Besides, only a very few of the complaints here is worth looking into. By for example make the DF have to option to look for players that gives the players two options: One for looking for firstimers in a dungeon and one for those who already have done the dungeon. Besides, SE needs to do something about those brats acting like the own the game, and those who ruins others game experience for their own benefit, like those damned speedrunners using DF.