I was trying to be discrete about it, but I guess I'll be blunt now. If one of my characters gets banned, my other character will be unaffected. If they were on the same SE account, they would both get the banhammer.
Ah, gotcha. I'm fairly inconspicuous with my third party activity, so I don't worry too much. Besides with the way things are now, starting over isn't remotely as big a deal as it would have been 5+ years ago.