If this worked for other forms of content than microblogging it'd be more interesting.

I don't have an issue with paying for people who make long-form video content, or people who post actual real long-form blog posts, or newsletters of interest but microblog shit?

There's barely enough of interest there to justify reading it most of the time, let alone paying for it.

Tweets and toots are just advertisement for the actual content, not the actual content, IMO.

This would be more interesting if it was a way to monetize Peertube or the various blogging platforms that are federated.