The report feature works very well in this game for player behavior. GMs respond to me in the same day within a few hours and as long as I can get timestamps and specific details of what was said, they pursue it. If you don't like someone because of their attitude, report them. Holding onto the idea that a name change will allow them to continue being a jerk with no actions taken against them is reactive thinking that passes the problems onto the next person who deals with said person. Just be forward thinking, take the 3 minutes to typing something out, and let the GMs sort it out. Its why they are here in the first place.

Yes on name change :P