I agree about this. Reddit and co do this automatically. I would like to increase or decrease priority of communities, something like a score multiplier for post rankings.

But, not it doesn't have it.

If it's 196, just pick an individual post you don't like, and search that users posts. Then block them individually. That page has some really out there posts and by blocking individual users, I don't see it nearly as much, and the quality is higher.

I usually use the "scaled" feed sorting algorithm instead of the default "active" one. It does a better job of showing a larger variety of posts, including posts from small communities.

That's what the different sorting algorithms are for. Trying sorting by "active" or "scaled" and see how it goes