The user is complaining that he cannot get rid of the half-naked young girls dancing no matter how hard he tries. And yet, your reply is to accuse them of it being somehow their fault? If this is not Thoughtcrime, I don't know what it is.
For the record, I have heard his complaint before. I assume it's the default algorithm response when it can't figure you out.
It's also very easy for them to become your whole feed if you happen to watch all of them.
Edit: I have absolutely no insight on what metrics are being used, I'm just making it up.
Then I followed a bunch of guys in true crime and made sure to swipe other videos away as fast as I could and it got less but i still get them. Probably if you use it for a long time; it might be more tailored to me but the content, even the good content according to like minded, so far is so bad that I don’t think I will give it that much time.
But I also have a couple of times where I fucked up the algo by liking the wrong video and having to mindfully steer it back on track again. So it's not magic, ofc.