There is reason to believe that your account is not the first and not the only one. However, there are no notes on your alternative accounts in your profile. Perhaps because your other accounts are already banned and you yourself are evading the ban hammer. Maybe yes, maybe no, who knows? The probability of a positive response is much greater than zero, given that your forum career was very winding and you did not immediately find your calling as a whistle-blower of reputation abuse.
There is a simple answer to this. Not caught, not a thief.
But when there is direct evidence of the connection of accounts, then suspicions and doubts begin.