Like @@Gawd said. When I was a member nearly a year ago I did that, even before I became a mod I would be told "Hey, Cookie. This guy is being extremely annoying and harassing me and the other players. Can you come in the server?" And I would jump in and try and get the guy to leave, if I couldn't I would demo or screencap and post a ban request. It's not that hard people! I have gotten some disrespectful people banned by just doing that!
So if you have no powers and feel that the appropriate action is a ban get the proof, post a ban request. If you do have powers and a person tells you that they are feeling harassed take care of it!
It may not make the internet safer or less of a dick place but at least that member will remember that xG's mods and admins are looking out for them!
TL;DR Do as the people said and post a ban request and use those ban hammers. Fuckin' H guys. #Rehashin '