Group Tags (figured this would be player behavior (language filter needed)

Group tags (that you and other players can see after your summoner name) need some sort of language filter. I've come across ones that need to seriously be dealt with in a harsh way (banning the player that created it). I've seen ones that insinuate racism, terrorist groups, sexual content, and downright crude ones that have no place in the community. We seriously need a filter system to prevent this and VERY harsh punishments.