I think there are 2 types of porn watchers:
1) Those who seek out content based on some sort of specific turn on; some fetish, preferring tall/short/fat/whatever.
2) Those who seek out content from specific actors/actresses they find attractive.
I'm a #1; variety is the spice of life.. give me a bunch of different pawgs, not the same pawg over and over again.
I think #2's are who OnlyFans appeals to. Honestly I've always thought even #2 was evidence of simping.. always seem to be "crushing" on random girls.. having some specific fantasy about "them" that they carry on for a long time with.. keep a folder of pics, find all the videos they can, etc.,etc. I can see these people having a high crossover rate with "OMG I will totally pay for this 1 chicks photos and maybe she'll respond to my comments too!"