In Robert's defense, I can tell you he doesn't intentionally TK.
He has that agi build that goes crazy with a katana or mallet, which is awful in a crowd; leading to the team killing. Honestly, the only reason I don't have a problem with it is because of my armor.
I'd vouch for Robert getting unbanned though. It's not like we don't end up team killing ourselves.
ps Robert, the reason I end up team killing you a lot is because you step in front of my swings with that fast build (I've one shotted a friendly teammate before; hilarity ensued)