No, we need the protocol to always display those annoying popup adware porn ads in the corner with tiny "x" buttons that exponentially increase the number of porn ads on click.
Twitter had rules about porn? Literally the only thing I've ever used it for was to follow porn artists to obscure to be put onto a booru or not in pixiv.
Those three are part of the xvideos network which you get to know because the "uploaded to xvideos" scrolls across the top of some of the videos on all the sites. I can't for the life of me figure out the first and last favicon.
I prefer the fediverse for porn, Twitter now has bots posting CP, also I have a feeling that if Trump wins and Project 2025 is enacted, Musk will explicitly ban porn the first moment he can...