"Negs" Gone Bad

I wish guys would stop listening to pickup artists.  As you know, pickup artists tell guys to "neg" a girl to make her feel insecure and more receptive.  This doesn't work with me, I just get angry and walk away.  I've been getting a lot of neg emails.  Sure, they get my attention, but definitely not in a good way.  For example, "Your profile doesn't say much.  Is this because you don't have much to say?"  Yeah, he could have been trying to be cheeky or whatever; I don't care, epic fail because I am left thinking, f*ck you and delete.