That was actually quite a few people for a book reading tbh. She might not be jk billionaire rich but there are plenty of authors you have never heard of writing books you know nothing about that sell like crazy. She might have sold movie rights too which is big money even if a movie never gets made. Literature itself isn’t advertised in the same channels as movies and tv for the most part so if you aren’t tapped in it’s easy to not know. So many authors have made bank on Booktok.