Here's the link. It's not FAQ, it's Q & A -
http://www.neorice.com/main
I've yet to see a Ghoul roleplay pain. For them it's less than that, it's just a stat change. Like losing 1 HP vs failing a check.
Evil? I've seen MMO players (since analogy is apt) go around spreading plagues, killing low power players and just being general **** heads for lulz. For them it's a game, for NPCs it's a battle to the death.
And now they made a special TV show where NPCs battle it out. I'm sure nothing bad will come from that.