If OF models achieve a higher income than NBA players, it means more money is spent on viewing OF models than on viewing NBA matches. I’m pretty sure that dozens of millions of people in the United States have paid to recieve viewership access to an NBA match on TV or at the basketball arena stadium at least once in lifetime
So for OnlyFans to achieve a higher total revenue than NBA, this can only mean A LOT OF MEN have paid for OF content at some point. I’d speculate 20% to 50% of adult men across the world have spent money for OF. In other words OnlyFans is no longer a niche space. OnlyFans has grown to the point that the average man is now spending money on content that originated from OF. It has become a normie space like YouTube; it's very plausible that a large share of men have made a financial expense for access to content on OnlyFans
It’s rare for men to openly admit that they’ve spent money on OnlyFans. But the average man has paid for access to some content on OnlyFans, which is an indicator that it’s widely treated as a discreet fetish among men, similar to escorting or meeting hookers