This was the case for a while, but OnlyFans kinda debunks that, no? It has been the biggest source of income for modern creators, and they generally don't do live streams (outside of like Twitch). Piracy is a very common problem for them.
Disclosure: I am anti-copyright and am dating someone whose primary income is OF. I'm hyperactive in pirate communities but still fight for my partner's content.
Information deserves to be free, but creators should still be paid for their work. Adult content barely f*king qualifies as "information".