i think that some people would abuse the power of Dungeon Master. They can either kill the players for shear joy of it or they can give the players super good items and loads of money. If this is actually possible (when the game comes out that is) then it will be really lame and boring! If you know any info on weither or not this can happen please reply!

From the FAQ, yes you can but if a character earns more XP or items than expected in a certain amount of time, the player will have to either give up some XP/items or become a non-vault character (sort of illegitimate, not allowed in certain games, etc.).