I can't speak for policy as it's not mine to make but as a guess I would think bans would carry over to the extent possible. Outside of spammers we all have a pretty good idea of the players.
I have to say though I'm not all that comfortable with the direction some of the posts here have taken - that horse is long dead and beaten to pulp. If there are questions of specific individuals I think it would be better to discuss it in a more private manner.