The sitting part is very human, what about rather than time based rewards rather base it on kills? Even with time based counter a non-moving character (lets say less than 2min) shouldn't get points imo.
For AD users this should be sufficient, besides the white and blue potions has already been implemented with time based counter.
Again the end would justify the means in this case AD potions for WoE'ing or other heRO events would be nice. For BG the idea should work, however most players should still be hunting for gears, but later on a novel idea.
