As far as I could tell, the policy allowing artistic nudity never existed in practice and Twitch doesn't seem to have been serious about it. Even though it was

As far as I could tell, the policy allowing artistic nudity never existed in practice and Twitch doesn't seem to have been serious about it. Even though it was supposedly allowed, basically everyone who drew art with genitals or female nipples got their account suspended aside from one or two exceptions that seem to have slipped through the cracks. This wasn't just limited to AI art or anything even vaguely photorealistic either, and it included Twitch partners whose bans are supposedly are handled in house. Also, whilst the Twitch CEO did say that some people had been accidentally banned who were following the rules, Twitch conspicously didn't unban any of them until comfortably after the U-turn. There was also nothing stopping the full, uncensored thumbnails showing up on the Art category page, including for users whose accounts were marked as under-18 - which meant that it was full of naked anime titties.