Fakespace with Diem won't reward you for posting, at least not to anywhere near the degree that happens here. That's the difference. You want stakeholders to pay you, stakeholders are going to decide if and when doing so is useful to stakeholders, both large and small ones, but mostly (for BOTH up and down votes) large.

No one is policing content either. It's rewards. Post whatever you like, as long as it isn't child porn or whatever where the UIs block it. If you get no rewards, then you don't. You still get to post.