One of the practical exercises pickup artists use to break their shyness is to open conversations with thirty women on the street; in fact, being able to start conversations and ask out strange women in a non-bar setting is part of what a good pickup artist is expected to be able to do (in Tokyo there's even a name for it, "nampa"). I'd expect a pickup artist to know many different kinds of women.

Also, if you don't really know what pickup artists do, how do you know what they think of women?