Some people post full action movies to youtube. It's interesting bc they use various techniques to avoid the copyright-detection bots: they append long segments of unrelated video after the movie, they manipulate the "thumbnail" that shows when you mouse-over the timeline, I think they AI-generate thumbnails that aren't actually clips from the movie, and of course they use text that describes the movie without actually using the movie name. The accounts look like they've been around a while, with "video blog" style posts in different languages. In the comments, people without an adblock strategy complain about the large number of ads, so I'm guessing the posters are trying to maximize uptime to make more ad money?
The movies are usually only up a day or two before the algorithms figure it out (or they get manually reported?) and they're taken down but a lot of times they get resposted. I suspect it's ongoing and I just stumbled into it now bc I was looking for movies to post to !fullmoviesonyoutube@lemm.ee . Anyway, uBO is still working on youtube, so I watched a couple of those recently.