Interesting concept that could be a good motivation to be active and leave quality comments.
I do think this platform needs something to more showcase talent and weed out the crap. It is very hard to find quality and informative stuff.
I still don't know how I really fit in. I still rather do a regular google search or go to trusted sites to get information.
I might still even go with doing a a traditional blog, where the majority of people go to get information.
Another issue I have is it's all about who you know. And that is so true in life too. But when they are supporting the crap stuff and not helping people that want to really take the time to create quality stuff, it makes it very frustrating.