To me the ultimate irony of the entire PUA thing is how utterly pointless and complicated the "methods" sound. Socially akward people are suppose to be frustrated with social rituals, then you go and stuff them long ass handbooks about how you have to say hundreds of different things in order to get laid.
Can’t speak for everyone but I’m socially awkward because I’m not sure what the right thing to do is most the time, how to approach people, etc. So I can see how a manual for being social and getting laid could be very appealing.