Hmm, I thought that Junior Members could already view the Backroom, just not post in it. At least, that was the case last time I checked. Perhaps it has since changed?

As for the current Warning system, "ban" is a bit of a misnomer here. It's really a temporary demotion to a very low permission account rather than a no permission account, which would be more common when banned. "Banned" users can still post in the open forums, but not the access masked Backroom, and can't do any of the nicer things, like have a signature, custom user title, edit posts and so on. Plus they get increased flood control.

Of course there is still the default vBulletin banning system should anyone feel the need to really step over the line.

Anyway, anyone considering spamming to become a Member will be sorely disappointed: post count doesn't really matter, and posting a large number of spam posts as a Junior Member would more than likely count against you when the Staff consider which patrons should become Members.