"Sanitized" Twitter certainly has that conflict too - and its relatively accepted there that no, people don't just post about one thing if they don't want to, while at the same time some people do complain about it.
I was thinking more in terms of the UI/decorations, but this is a fair point. It's curious people don't complain that I talk about trains/coffee/anime among my FreeBSD and OpenZFS tweets. Maybe it is about expectations.