We have just had our 1000th question; and this is the 12th day we launched; not long, but enough to see how we're doing. Lots of discussions have been done in the review post of beta, while the number of questions is a weak link of us, we do not have enough upvotes, and also there are a number of homework problems, we tried our best to increase the quality of the posts and answers.
Although numbers are not important, sometimes they serve as indicators. I have just observed a drop in the answer ratio; at the time we graduated from beta it was about 2.8, and now it is about 2.5. It is also interesting that in the mean time, our traffic rate is constantly increasing, and the number of active users (users with a positive reputation change) in the late month is passed a hundred, a little increase compares to it was in beta.
Maybe the cause of the drop in the answer ratio is the homework problems, but I am not sure. Is this a healthy decrease (since we do not want to push the site too hard), or is it a signal of lacking enough thrust to keep flying our rocket? What do you think?
Another issue is the bounty system. It seems to me that recently, none of the questions with bounties have been answered in the bounty time period. The same problem occurs in MO, which may due to both sites are theoretical oriented, and since it is related to the system of SE, we do not have too much we can do. Is there any solution to the bounty problem, despite the fact that it serves as a mechanism to attract more attention?
Final thoughts, it seems that most of the traffics comes from a particular region of the world (maybe US), since there is a low traffic gap (for about 8 hours) in the posts. Not a problem but an observation, but I do expect more experts and grad students all over the world to join our community.
Keep going, see how far we can reach :)