You realize that does sound a little crazy though, right? "As long as the gays pay me $60k, I'll take a few photos in a thong that may or may not be good or may or may not be posted." Maybe for another $100k after that, there'll be a video of it!
There's a difference between exploring and exploiting, and I think he's exploiting his fans. He's absolutely entitled to post whatever he wants, but as others have said, he shouldn't have used OnlyFans as a platform to do that when he knows what people are signing up to see. A $15 monthly fee or making people tip to receive 7 second videos that are tamer than things he's posting on his social media is grifting, and people who pay money for something are, indeed, entitled to voice their opinions or give feedback about it. That's the way business and transactions work. Stephen can take the advice or complaints to heart or ignore it (as he has been, lol).
(On a slight tangent, OnlyFans really needs to add a preview feature to their platform so that people can see what they're signing up for and don't have to sign up blind. What other business operates like that? But that would probably lose them money, so I doubt they'll do it).
With that said, if people don't like the page, the best way to voice that is to unsubscribe. Let him post whatever he's going to post, and let whoever wants to enjoy it enjoy it.