Hm. This is getting interesting. But if he wants to fix his mistakes, it's okay. However, he didn't really need to delete those topics since moderators already give him a pass and no ban for the thing he did. About mods helping him to delete these things, I guess he is tricking mods to do their job. He is deleting everything first and then making it like a spam post that is needed to delete. So, I am not sure if I can blame the mods about it.
Now I am sure that he had no intention of fixing things because he made a mistake. If he ever said that he wanted to fix things, he only did it for his benefit. At some point, he offered a "truce", apologized to the community and GazetaBitcoin for the offensive words, and withdrew his feedback given to Gazeta.
We can only guess why he deleted that post
https://ninjastic.space/post/63041115However, immediately after Gazeta wrote that he would not withdraw his feedbacks, there was instant revenge and neg tagging again. If you want to sincerely apologize or forgive someone, it must be unconditional.
I saw revenge feedback on BitcoinGirl.Club added later

That's not how things get fixed.
There is no reason for a self moderate topic to exist. I think this feature should just be removed. No one, except a moderator, should be able to delete someone else posts.
Oh, this feature is needed. The thing is in the way of use, like anything else. If two kids stab each other with pencils, it doesn't mean that pencils are unnecessary and only bring bad things.