You seem to misunderstand the website and prostitution then. OnlyFans doesn’t promote prostitution. No adult sites do. No dating sites do. As you said, that would be illegal in most places, even most of the US. They promote people selling adult material that they create. They also sell experiences, though none of it is strictly meeting people in real life. The majority is photos, videos, messages. That said- any communication and exchange of money can be used facilitate prostitution. Facebook was used to setup prostitution, MySpace, CraigsList, all of it. It was not it’s soul purpose.

Onlyfans is a double edged sword- but let’s look at what it does. It gives a place for people to make adult content for money. It makes it possible for them to do it for themselves, without having to rely on others. Who were those others usually? Pimps, and human traffickers. They would find women who couldn’t do things on their own, and take advantage of them. Onlyfans makes it easy enough that they can choose to go into the field, without going into that particular line of work. It provides a measure of safety that they didn’t have before.

It’s not perfect. People still find find ways to abuse things, people are adaptable like that. Still, online transactions are much easier to track, and much harder to hide. If traffickers are using Onlyfans to communicate with victims, there’s records of it, IP data, credit card numbers, witnesses, and photos. Everything you need to find those people. So to stop that- they have to take things elsewhere. To places that don’t care about the safety of the people that use their service.

You want to label Blue as a bad character because they use a site, without knowing how they use it. It’s similar to saying “you watch Live Streams on Twitch? That is that place that promotes women to walk around topless and video themselves in hot tubs in bikinis! You disgusting pervert!”. You don’t know what the site has, or does. The majority are certainly selling nude photos of themselves, but there are some that do more artistic nudes- not actually showing “bits”. Some only sell cute photos, sexy cosplay, short videos of affirmation, and kind words. Some for kinks, some just because people are lonely.

I gave some hints in this comic. Kate knows one of the people Blue follows, and what do they mention? Their sexy photos? Their lewd videos? No- the fact they sell coffee and make good money on requests. What kind of requests? It could be anything right? Assume the best or the worst, probably depends on what you think of the website I guess. I expect eventually Onlyfans will become an unsafe place for sex work. All the articles and people crying that sex is evil will win – and all they will have done is created more of what they say they don’t want. Safer places will vanish, illegal groups will pick up those left behind.