[@Mokley] Basically, I'm in this other roleplay about zombies in which the GM is the Dungeon Master. He's basically the one who'd move the story along when a scene is done/beginning to stagnate, and whenever he feels proper, would start an event or drop a bombshell on us XD. Is that what you're thinking?

As for quitters, basically, he'd just kill their characters very quickly so that it doesn't bog down the RP.