I commited to de German StackExchange site because I study German. The site went to beta and I am trying to participate as required, looking at it daily. However, I noted that I simply do not have enough knowledge to help most of the OPs. Now, I feed a bit guilty to commit to a site which I cannot help a lot and most of my doubts are just too simple to be acceptable for now.
So, do you think it is valid to commit (and take the commitment seriously) to a site which we cannot help a lot?