Open source projects are often dominated by alpha-male chestbeating nerds. Really. Its easier to be a newb in an online game, than to try to contribute to an open-source project. I'm sure open-source selects for something. I'm also sure its nothing I want in a co-founder.
lol...I'm trying to imagine an "alpha-male chestbeating nerd" an failing utterly. Serious karma points for anyone who posts a picture.