I thought there was a rule that said files had to have meaningful and descriptive names. If the uploader is too lazy to put a name on them, then let them lick a vagina.

Nevermind that there is no valid copyright, nor any valid copyright holder, nor any time to verify that, etc.

There were a few colt / mustang movies of the 1970's which involved lawsuits because of the commercial MUSIC included in the soundtracks of the movies - not because of the movie itself. Not one gay porn scene / movie has resulted in a successful lawsuit in over 40 years.

A recent example which proves this point is the lawsuit involving Chaturbate vs Recurbate.
Recurbate blatantly copies and SELLS the content of Chaturbate. Chaturbate had the site shut down, sort of.
The SITE was shut down because of the NAME of the site being RECURBATE and people confused that with the site CHATURBATE and thought it was the same company. This forced Recurbate to shut down.... for TWO DAYS. They simply changed the name of the site from RECURBATE to RECU.ME and were back up with exactly the same content that they blatantly continue to copy and sell from Chaturbate. That content is not, and can not be copyrighted. There are about a dozen new sites which post full gay porn scenes from new movies which don't even require a membership to view nor download. The problem is that they carry a very limited selection of scenes.

I just got a "Access denied!" looking exactly like that. The Tab TITLE got the prefix
*** NO COMMON THEME ***
to the original torrent title. Would this be the reason it got removed?
It'd be a neat info-feature if this is so.

Likely a duplicate. If you check the full URL when you're on the torrent page you'll see that theres an identifier that saying it's a duplicate file and therefore neither you nor other members can see the torrent anymore. If it was a DMCA you would have been informed in your inbox.

This sounds right. I think the way the system works is that if a torrent is removed for being a duplicate, it isn't really taken out of the system; it just becomes invisible so that people who are leeching it can finish the file(s). It's a nice feature, because that way leechers don't get stuck with just a partial download.