It's a layered statement with a bit of deductive reasoning. Onlyfans cosplayers are predators. They seek to bilk as many young men as possible, for as much money as possible, and the best play is to leverage popular and appealing characters in order to sell sex. This doesn't mean that the characters themselves are overly or even overtly sexual. It just means that people like the characters enough for onlyfan thots to take advantage.

So if no onlyfans predator is cosplaying as your character, it means your character doesn't have even the smallest kernel of appeal required to gain purchase with coomers. You've designed a character with no charisma.