Is there anyway I can know the "health" of a beta SE site? There are a lot of metric I can get, such as number of daily visitors, question asked, ratio of the answered question, ratio of the accepted answers, unique users etc.
But the problem is, at the end of the beta period, how do we know whether that site will graduate into a formal SE site? The SO team can always decide that in a cabal, and tell everyone their decision after much argument, deliberation and politics. But this is not transparent and subject to whims and fancies of the flickering temper of the SO team.
What I want to know, is is there an objective metric (read: Just One Number) that allows one to say, without dispute and doubt, whether a beta site "make it" or not?