Here are the guidelines for an Area 51 beta:
15 questions per day on average is a healthy beta, 5 questions or fewer per day is worrying. A healthy site generates lots of good content to make sure users keep coming back.
90% answered is a healthy beta, 80% answered is worrying. In the beta it's especially important that when new visitors ask questions they usually get a good answer.
Every site needs a solid group of core users to assist in moderating the site. We recommend:
150 users with 200+ rep
10 users with 2,000+ rep
5 users with 3,000+ rep
2.5 answers per question is good, only 1 answer per question is worrying. In a healthy site, questions receive multiple answers and the best answer is voted to the top.
1,500 visits per day is good, 500 visits per day is worrying. A great site benefits people outside the community. Eventually, 90% of a site's traffic should come from search engines.
Based on the forums, if we directed specific questions directly to the Q&A site, would we have the volume?
See Bitcoin Forum - Statistics Center for reference. Note especially the overall trend.