That's because it's meant to disrupt conversations, not be liked. None of it is liked, you just have to wade through mountains of it to follow a conversation. The content is shitty US propaganda that maybe 5% of people agree with without reservations. None of those people are on the threads where they're asking a woman how much she likes Putin's dick.

The most damaging thing that they do is inflate the like counts and apparent engagement of government thinktank employees and unaware nationalists drunk on the dopamine hits of botted upvotes. I'm absolutely certain that the removal of downvotes from social platforms in general was a long term government project.

edit: does anyone believe that this behavior can't be easily detected algorithmically? I don't know about other platforms, but Twitter is obviously a government partner, not a victim.