https://twitter.com/AshleyLatke/status/1557260317591224320
The thread mainly covers the experiences of and implications for human sex workers, but the GARM guidelines being blamed for all this explicitly include "display of genitals, real or animated" as a reason to mass-nuke both subs and users. And Twitter is signed up to the same censorship regime, which means people's suspicions about the recent changes there are likely confirmed.
There will soon be not a single large social media site where sex is legal.