From what I've seen they will usually let someone evade their ban after some time has past and they follow the rules.
Any base for that allegation?
Like a clear case of evidential ban evasion that is known to moderation, but went unpunished?
Do certain users fall under a different set of rules than other users?
Ideally, they shouldn't.
Is there a secret hierarchy that is not visible to regular users?
Something like the free mansons?
![Cheesy](https://bitcointalk.org/Smileys/default/cheesy.gif)
Can one evade the permaban whereas another one can not?
If you get caught, that should always result in your other accounts being banned permanently aswell.
A permanent ban is being given for a cause, I don't see any reason why staff should ignore the evading.
Accounts being unbanned are a different thing, even though we don't see that one often.