I've been banned from reddit. I think their algorithms banned me for posting more than 10% to one site (permies or richsoil).
I can still log in and post to the the subreddits that I moderate.
But I had pretty much stopped posting to reddit anyway. Reddit is optimized so that corporate trolls can leverage it. So you see too much of what the corporate trolls want you to see.
Their algorithms insist that I post pictures of kittens .... wait, that's not quite right .... they want me to post more pictures of other people's kittens. Or links to articles that I think are 60% interesting and loaded with advertisements. Apparently, if you are too stupid to have a rich thought, then you want to post links to a collage of dreck from all over the internet. But if you stop, write a cohesive, media rich article on some topic of interest - well, you can do that, but no more than 10% of the time.
Frankly, after getting as many upvotes as I did at reddit, I would think there would be a few people on reddit that would feed my stuff to reddit by now. But ... apparently not so much.