See, what you guys don't seem to understand is that the Mystery Method isn't about pickup lines or gimmicks. It's about understanding male-female social interactions. It's about learning to behave the way the high school quarterback could whenever he was around girls. It's not some sort of trick to get into their pants, it's simply realizing how to interact like a guy who gets women. There's nothing more and nothing less to it. Go out and watch a guy who is great with ladies work - you'll see him naturally do most of what Mystery preaches.
You can badmouth negs all you want, but teasing girls has and will always work in building attraction with them. You can pretend that you'd have this objective set of responses to the nail comment, but you wouldn't in the heat of the moment. You'd react exactly in the way he describes.
In the end, to the guys who need help with girls, take it from me, cbrons, and Long - it works. It works damn well. Don't try to convince women it does, they're all too smart, too observant, too objective to fall for it. Never once have I met a woman who has thought it could work on her (only on twits, of course), and yet my success rate proves otherwise. Including a girl I actually showed it to in a conversation, denied it would ever work on her, and was still easily seduced by the core methods employed. Sorry, it's all about building attraction and chemistry - logic need not apply.