The ever-perceptive @ianfontinell makes a great point that the site is understaffed, and sometimes smaller "infractions" to the rules can't always be addressed. The concept of a "common theme" is a matter of interpretation. While a collection that has "All of Dick Bigcock's videos" is clear, a collection entitled "My favorite gay porn" is not keeping with the rules.
There's also the rule about listing all of the files in the torrent. This is problematical given that there are lots of fan site uploads whose holding dozens of files with nonsense names like "q03495uehgj.jpg"--and conveying a list of such isn't very informative to a prospective downloader. The rule is also perhaps a bit redundant, because I find that mousing over the "number of files" entry will pop up a window showing all the file names.
It might be worth considering having a "best practices" list that aren't official rules, but that make torrent pages more useful to the prospective downloader. Examples might be:
If there are many video files in a torrent, including a thumbnail page for each one as a .jpg is very helpful. This is not difficult to do using tools like "AutoMovieThumbnailer", where I can point the app to a folder of videos and it generates thumbnail sheets for each one.
Including a sample video clip (1-2 minutes) of a video so the downloader can judge the quality of the video. There are some older/vintage videos that are much less than HD quality, and members might not want to download 1 GB if the file is not up to their quality standards. I use "Movavi Video Converter" to do this...and this app has a lot of other capabilities as well.
Perhaps a good but ill-defined standard would be the old Golden Rule: "Do unto others as you would have them do unto you." When posting a torrent, include as much information as you would like to see in a torrent that you download.
End of sermon. I apologise for the length of my post. I work in a field where something called a "brief" can be hundreds of pages long.