Here is the Area 51 snapshot:
Source on 2/26/16
Compared with four months ago it looks like we doing better on some attributes and worse on others:
- 0.8 questions fewer per day
- 3 percentage points lower answer rate
- 22 percent more avid users and 48 percent more total users
- Unchanged answer ratio
- 11 percent more daily visits.
Since the answer ratio isn't changing I'm not sure what is causing the decline in answered questions. Perhaps other stack exchanges have strategies for getting people to accept answers. I've been told that some SE sites, like the Math one, have lots of unanswered questions and people are fine with in that community.