I don't use it because I don't have a credit card but have looked up some leaked Onlyfans content and didn't particularly like it. I didn't bother saving it to my hard drive and wouldn't pay money to see it either.
I mean, it's literally called only fans so I assume the whole point is if you're into a particular person instead of random stuff.
It's not my kind of thing, but it seems to me like it could serve a purpose (it's exploitative but it's a voluntary service I guess). However, I do think at some point it becomes detrimental over pursuing actual real relationships.
I have an account on there that I was mildly active with. I stopped being active partly because I am renovating a duplex and the other is because I don’t enjoy entertaining men enough to do it as a living again