Simple solution for the 3rd quest Bombs - make it a LEVE quest

[Alexander_Dragonfang]

So why should GMs should be shuffled into the event just for trolls there, but not at all times elsewhere?

Because it would be much funnier. I would even use some kind of world-shout command to call by nickname and declare sentence to the temporarily banned players.

Ahhh, good old ragnarok online GM-Style.