Why look for a link to the source if  SiNeReiNZzz provided it himself in his message? But I agree that Jeremy is so actively pursuing the SiNeReiNZzz has something personal.

Jeremy Franklin not the author of the post, which accused SiNeReiNZzz of plagiarism. But from August 29, 2020, he begins to demand to ban SiNeReiNZzz from the moderators.
It all looks strange.

I can assume that Jeremy has a grudge against people who managed to escape the ban. He remembered those, many who had been banned earlier.

I can advise Jeremy to apply for the position of moderator, since, as you say, it is the moderators' fault that SiNeReiNZzz is still not banned.

I see that recently many have returned from the ban. For some people from the local Arab section, the strict rules did not apply. But I believe that it is the right of the moderators what to do in such cases. After all, we shouldn't pursue anyone here and start wars.
If someone doesn't like someone, you can always use the ignore button.

I am not making excuses for SiNeReiNZzz in any way. Also, I think it is inappropriate for a DT member to leave personally relevant reviews. And Jeremy should have a little tolerance and acceptance of those decisions that were made by the moderators. Otherwise, the forum will be anarchy.