I've noticed that the majority of questions right now are being answered by the same couple people (I won't name names).
I think this type of thing is counter-productive for developing a fledgling community.
As someone who would like to contribute, it's frustrating when every question has already gotten a detailed answer by users who have already farmed a bunch of points in this community (whether from being in the beta, or moderating, etc.)
I suggest that those individuals actually refrain from participating until others have already contributed to a question. Otherwise there's little point for someone like myself contributing to a community when 1-2 people are already answering all the questions and their answers automatically have high visibility.
I suppose if the goal of the community is NOT to attract additional contributors, and you're fine just creating a google searchable archive of 1-2 people's opinions, then you're on the right track. However, I think numerous opinions from a diverse array of contributors is preferable.