Tweets don't necessarily have to always be about content, it's easy to spot who's just doing it for the farm and who genuinely is tweeting for the sake of tweeting. Elon can paste a meme and get millions of likes. Similar to Hive you don't always just curate the content, there's millions of authors and content creators out there, at one point it starts also being about who you want to reward as a person, their reputation, history, contributions, etc, etc.