What the platform incentivizes is not all there is to consider. Actual outcome must also be considered. Nike can go through all the motions of incentivizing the use of ethical labor in their factories, but if it turns out that despite their efforts, a significant portion of their sneakers are made by child slave labor, then I'm not going to go around claiming Nike is an ethical business. Maybe I'll buy a pair of Nike shoes anyway, because I don't see a better option, but I still won't claim that Nike is ethical. I'll leave extolling the virtue of Nike to the Nike PR department. Anyway, intentions do count for something I think, but outcome is more important.

Note that I am not claiming Onlyfans is unethical. I don't know if Onlyfans is ethical or not. I don't know what the rate of abuse content on Onlyfans is. That's information I simply don't have. Furthermore, I'm not even sure what rate of abuse content society should tolerate from a company. Probably if these are only isolated incidents that are swiftly recognized and rectified, it shouldn't damn the whole platform. Also, I think it probably matters whether that rate is trending up or down, but I don't have any information about either possible trend. I lack the information I need to support the claim that Onlyfans is ethical, and I think the rest of you do as well.