While I've always been critical of Twitter's censoriousness (particularly in regards to art, but there are also other areas where the "free speech absolutist" has failed to live up to that motto), it appears they're now just not bothering to surface sexual content or other "sensitive" content now to followers (except in the following feed).

Presumably, this is to do with them not wanting to surface dead bodies, and you know, sexual expression tends to get lumped in with that as "sensitive content" (which is problematic in it's own right).

Another possibility is misinformation, which is problematic, because it would also take legitimate content down with it. I don't see what that has to do with sexual expression, other than "taking it as an opportunity to suppress 'offensive' content".