My understanding is that chatbots are better at seduction than we are because they don't have their own feelings, personal history, and such to get in the way.
When it comes to sexual attraction people often have a very specific coding that they respond to, for that kind of chat I'd imagine you'd want to match that coding but if you make it your own and bounce their fantasy off your feelings and experiences it may or may not really help make a connection.
(A strong image I have of somebody trapped in fantasy was a kid in elementary school who must have been acting a scene out of a movie when, with very little provocation, he made a big production of removing his jacket and explaining in words that didn't seem to be his own and with emotions that didn't come from the immediate scene that, "Now I've taken my jacket off, now I'm really serious...")
When it comes to sex, particularly when visiting OnlyFans, a lot of people are watching some movie in their head and aren't necessarily in tune with the situation in front of them.
If you're really trying to make it with someone, especially if you really love that person, you can put in the effort to get through but I would find chatting with customers on OnlyFans exhausting. It's been a controversy for a long time if a man or a woman who do a better job running that kind of chat service with woman have the advantage of real female energy whereas men have the advantage of understanding male sexual psychology and never getting squicked out.
For people to make real money at it though they have to hire chatters, one performer who is highly successful can't personally service everyone.
"Pound on my INTIMATE REF #35 NOT FOUND"
This was all covered by futurama: https://www.youtube.com/watch?v=BtqGTn7PCBw