The overwhelming purpose of onlyfans is for exclusive sexual content. Don't throw the "that's not only what it's for" line at me b/c you're fighting reality at that point. Don't choose a platform that is dedicated to porn and try to be "above porn". There are other platforms more suited for what he wants to do, ie patreon. There's a reason he choose onlyfans, exploitation.
People will hear onlyfans and will automatically hope for nudity no matter what he cautions. And why shouldn't they? When you go to the zoo you expect to see animals.
He intentionally utilized the reputation of onlyfans to rope people in that would stay on the hook regardless of his "warnings".
Call these people dumb, foolish, or naive, but I guarantee Mark was banking on them being just that.
Also, marks hair looks terrible in these photos. You can disagree with the other statements I said, but you can't disagree with this one. I won't hear it.