probably worth adding some ML filter to it because yeah, most of the bulky stuff in bittorrent is always going to be garbage - a lot like the internet generally, the value is in filtering the good stuff out
there's certainly massive amounts of porn, esp. if you look at active traffic, but perhaps even worse than that is random crap collected for no good reason and "backyard genius" trash content pooled together by the gigabyte
quality and traffic are grossly uncorrelated, so finding stuff is a huge challenge