I think the Rx should start tagging avatars with little banners on the bottom, to prevent us honorable people from interacting with unwanted posters. I would never talk to a racist if I'm warned beforehand. You can use simple words/letters that won't take up too much space, like PERV for child molesters, STIFF, BW for bonus whores, SB for scumbag, GH for ghosts, L for losers, DUMB for dumbasses, KKK for racists, W for white posters, NW (non-white) for all the rest, CK for convicted criminal, PT for pending trial, DUMB for dumbasses, SL for scat lover, JAKET for homosexuals/bisexuals, etc.
This way posters can choose who their kids and themselves talk to.