I dont think so
Can I delete my Forum Topic?
If no one commented it, yes.
If else; you normally can’t, if you don’t beg everyone to delete their comments which would be super hard
If the only reason of why you want to delete your topic is the comment about ban then I would not worry since the topic is in the right forum Clubs & Teams (even if it was not created there originally)
The only way to delete a thread with comments is to contact chess.com support and have staff approve of it and have them delete it for you. I checked your thread though; it’s fine as it is. You don’t need it deleted. If you just ignore it, then people won’t comment on it and it will get pushed down the list of threads anyway.
https://www.chess.com/forum/view/clubs-and-teams/would-you-join-my-club-pls-129141796 This is my Forum Topic. {>v<}uhh