Interesting. All the people I know who have been/are friend zone'd are just like "I love being in your presence because you have nice hair" and not "grr why won't you have sex with me yet I hate you".
Seriously, all the "harem" girls that I have seen always have really nice hair. I think that's the key to attracting the betas.
I think that's just a way to attract guys in general. I like nice hair.