To explain the nale demographic, men are typically the dominant gender in the IT fields and usually end up at the front of whatever new is happening on the internet, with exceptions of course.

Because a great deal of internet culture developed first with men and has only really started adapting to large numbers of women a couple years back, its to be expected that a new site is going to have a predominantly male userbase, especially a content aggregator. If Hubski hits a reddit like period of growth then you can expect the female userbase to grow in turn.

That being said, I will be sure to invite some women I know on here if they seem like they'd fit. An echo chamber is always a terrible place to be unless you feel like stagnating.

....except that the mindset of echo chambers being negative is just a product of the echo chamber of being in an intellectual community. Circles within circles, all the way down.