[Kaimetsu]

Banning isn't the solution. Training is better. A person swears too much or harrasses people? Render his character unable to speak for a few hours of gametime. Somebody likes to grab players in lewd ways? Flag his account such that he's viewed as a pink rabbit, again for a few hours. In-game punishments are the best way to deter people without making them want to quit or excluding them altogether.