Some extremes that were early in the game, sure, but there's probably tens of thousands of people who posted/did things they didn't want to do to make ends meet and pay the rent.
Unlike the first profession, this time it's images and videos permanently saved to an always available and easily scraped/abused fairly well replicated database, and I can imagine that people get more desperate as the money fails to flow in, which I fully expect onlyfans is exploiting.
I'm not sure it's an economy that should exist. The traditional porn market was bad enough, but onlyfans seems 100x worse to me since it's basically the Uberification of sexwork or whatever you like to call it.