Oh I see what you mean, it uses JomComment as a backbone for the comment system which saves the JoomlArt from coding their own...
...i'll make them aware of my presence (introduce myself) in that thread, it's the least I could do. As for helping them though (if you were wondering), this I cannot answer at the moment.
As for your 2nd point though, similar features are actually planned for a future JoomlaComment release. You could make your own Yahoo Answers and Experts Exchange site when that day comes