The OP mentioned that his donator account was banned around 2013 and 2014. Upon reviewing the OP's profile, I observed that it was created on January 2, 2014. If his donator account was banned after this date (January 2), we can dispel the suspicion that this case involves ban evasion.
When you created the second account is not relevant.
Bans apply to people not just to accounts.If what you say were true, those who come to the forum to break the rules with premeditation would only have to create a dozen accounts on the same day and start using the last one. Then when they were banned from that account they could move on to using the second to last one without evading ban, and so on.