It seems like the reverse of a Question/Answer site; it is almost a Answer/Question site, where someone posts a solution ( or a solution to a question they were asking themselves ) and others ask them about more about what they found- great!
Concerning functionality: 1)How about being able to up-vote comments? Some insights and comments are more valuable to your core community; and it would be convenient for them to be able to see that reflected, as well as allowing them to encourage it.
2)How about being able to merge similar or duplicate posts; so instead of duplicated posts in a subject you would see all the duplicated posts under the most popular/valuable post, as chosen by the users' up-votes.
It is a general-knowledge based site right now. I wonder if you could port it to existing, active sites so that you could get feedback from the wild. Have you considered enabling it as a web service?
It might be cool if there was an API such that I could link the # of "aha"'s that users had attached to my website- similar to the Face Book 'like' and Google '+1' button. Though this would be more valuable, since I don't really want to see all the people that liked a page who I am 'friends' with; rather, I really want to read valuable insight ( hopefully :) ) from strangers!