I don't understand why someone can't return under a new identity. Can you explain specifically what would prevent someone from doing that?
The OP is a twat who tried to sockpuppet but was figured out fairly quickly due to the aforementioned (being an exceptionally unique twat).
Therefore the only conclusion is that no one - NO ONE, EVEN SATOSHI - could possibly have a new account because the damn forum users tend to get suspicious of know-it-all newbies and might start guessing if an anonymous account is an alt of another anonymous account and that's apparently a bad thing for reasons.
Trying to be less of a twat is of course not an option.