I'm not saying its malicious or deliberate, but any non-diverse population will tend to exhibit some bias.

I don't think its that surprising that a group of men share different view points about worthy posts than a group of women would. The point is wikipedia doesn't have good coverage in this regard. I'd say the same thing for a group of American editors vs a group of African editors. Or a group of wall st professionals vs blue collar workers.

Wikipedia's editors have a diversity problem in light of their goal to be the "world's encyclopedia".