Because you can't ban HedgeFX if there are still numerous other cases, where the evidence is completely clear, that these Accounts committed Plagiarism. If you ban HedgeFX now but don't ban the open cases of first offener Accounts, that's completely inconsistent.
The forum has always been inconsistent in that regard, this wouldn't be a first. It took us (the Croatian board) 2 years to successfully appeal a ban for one of our quality members.
It is certain that there are plenty of those who have been banned, but have continued with another account and try not to show any connection with their previous appearance here on the forum. Bypassing the rules and I'm not sure that it is possible to prevent such a thing.
I am guessing knowing the right admin or having contact with them over whatever social media they use can speed things up.
The only thing I know is that Cyrus is somewhat present on the unofficial forum Discord channel. Maybe he should try it there.
https://bitcointalk.org/index.php?topic=5247383.0