[quote=@Bishop]
Also, if someone is banned many times enough from different rps, after a number is reached you could red flag that person by giving his name a red flag badge so other people know who they're dealing with when said person shows interest.
[/quote]
I don't think this is a solution... well, to something it is, but it creates a whole another problem. Who would take anyone with a red flag to their RP? It might just as well be a sitewide ban at that point.