I'll give you a hint: actually try it

That's fine too, but making broad statements without anything to back it up isn't really a good look.

I didn't mean to suggest to go all in. I meant literally try using RSS/Atom for that. You'll run up against a bunch of walls real quick.

Sure, RSS/Atom can do a reasonable job of recreating something like the Twitter home timeline. But oh, you wanted to reply to something? Favorite a tweet? There’s nothing in RSS for that.

Don’t forget posting things other than blog posts and text. You want to post a photo? Sure you could embed that in a blog post I guess. A video? now it’s getting tricky. Maybe use Atom enclosures? Posting multiple photos to be shown as a carousel like instagram?