The [US] court system we have is entirely different (bonds, bondsmen, crowing in jail while awaiting trial), so it can't be compared to the system we have here, on a gaming forum.

There's no reason to allow scammers and toxic people to be able to unban themselves based on if they dish out the money or not, kind of defeats the purpose of the ban, and going back to the court analogy, such circumstances do not exist here. "Bail" can be seen as a post on Ban Appeals.