I think the admins here should definitely aim to build a positive atmosphere and community here at MicroWiki.
I also understand the concern about quality and although I think that we to do more than just have the admins update the quality of articles. I think we need quality tutorials and documentations giving helpful tips and guidelines to writing articles. This would allow the wider community to write quality articles which will help the site grow.
I would definitely agree, although let's not do too many things all at once. MicroWikia has a very small staff and user base and as such isn't capable of simultaneous widespread improvement campaigns.
Improving the quality of articles is the most pressing problem for the Wikia right now. Admins should be clocking a significant amount of time every day combing through and fixing up articles. After that is more or less finished, as Ben said, tutorials should be created to ensure that all future articles created are of a satisfactory quality. Establishing a community, while important, is not as urgent of a problem, and can be dealt with after there is a quality wiki to go along with it.