Measuring quality (narrow focus)

I am not exactly sure what we are discussing but I think writing some guidelines should be relatively easy. I am more worried here about the systematic bias issues: for instance, coverage of Israel on ar.wp. But may be we should just let these issues as an apart point and not discuss here (as well as problematic topics on major projects). I beleve even without these problematic topics we cover 99% of all the articles. Problematic articles should be marked as such and treated manually.