On Wednesday twitch changed their site rules to allow artistic nudity. The policy allowed streams to display nonsexual nudity as long as the stream is tagged, so that the stream would be hidden from the front page. Twitch rescinded the policy 2 days later.
The new policy hasn’t really done anything yet. Go to twitch right now and choose to watch an art stream. I guarantee you’ll see a whole bunch of twerking - I saw 4 streams without needing to scroll down. (also several artists drawing skimpy women with massive dobonhonkeros)