I'd like to disagree with the initial question of this thread. I haven't seen much hate towards pick players for quite a while. The general consensus that I've seen tends to be that there's nothing wrong with using a pick.
So I'd like to know where the idea that there's hate towards pick players is coming from?
This. I haven't heard too much hate for pick players, at least on this forum, in a long time. With that said, playing with a pick can preclude you from playing certain genres, but its the same for finger playing. In the space i tend to play in, i think being a pick player would be an upstream battle. The style you play is a pretty huge factor in determining the importance of each technique IMO.