I'm a new user on this site, but I've been following what's happening here for maybe a year (or two?) and I've seen that it seems to site lacks activity.
On Area51, there's an average of one question per day, which is low.
I've read this post, I think it touches something important. MartialArts.SE needs to find its purpose. In my opinion, to bring more new users, we need solid questions with solid answers. Otherwise people wouldn't feel encouraged to post questions here.
MartialArts.SE has potential, I'm sure of that, and I hope some of you also think this way.
This potential needs to be developed by the current solid users.
I think, though I have nothing to back this up, that we should have more community-wiki questions written by high-rep users. You are the example to follow on the site (or well, you should be). Write some questions, and self-answer them. Make it a community-wiki so people can add information, make these answers solid so that new users on this site take some time to read more "open-ended" questions and get interested to read more.
From my experience, there are some recurrent questions in martial arts. "How to use [...] in a self-defence situation", "What are the difference between a style and another", "stretching/training tips", "Ways to figure out if you're in a good dojo", etc.
Some of these questions are asked more than once on the site, but there's no "reference" post.
This is only my idea, but I'd like to start a discussion on how can we improve this site's trafic?
EDIT : Maybe could we list here questions that we think would be good canon community wiki questions. People could grab some from times to time and write a good question/answer?