I'm asking because of an idiot in game who goes AFK during the floor 70 boss with no warning. They're level 54 machinst, and they died multiple times on the way to floor 70 (Once due to opening a silver chest a few seconds after hitting a landmine, when people should NOT be opening chests in combat/right after landmines), due to not really acting like they knew a thing they were doing.

Personally I hate that people can level up classes they know NOTHING about in Palace of the Dead, more so in the NEW floors, they're usually the biggest hindrance in the group.