Nothing having to do with the commitment or the users or the experience itself. I was a pretty rewarding experience. I would highly recommend that anyone who has an interest in any subject they feel that could be helpful in any capacity [and who feels they can meet the minimum time/length requirements] to consider doing it.

Its fun, the members are very supportive, and it's generally a great experience. I loved it for the short time I did it and it's a great way to learn more about something you are interested in and have a way to get more ideas and learn about other people on the site.