Please shoot my idea full of holes. 😁

I don't know if its just me, but I have a hard time finding and talking to new/existing users for feedback. I imagine it's not just me with this problem, especially in early startups that need constant feedback.
The usual popular methods involve posting on twitter, reddit, IH, PH or other forums which often relies on niceness of others to give you feedback and unless the post is popular, you get very few responses.

So is this a problem worth solving? And can grow to be a business?

I'm trying to find out.
My idea right now is an app where you can help others review their product and in turn, you get your's checked and reviewed.
I've often seen hackers here offering to review other's products, which I thought was amazing initiative. What if you get credit for each time you offer a feedback which you can use? If you don't have the time to offer feedback, maybe you can offer $ as another option.

I've built some of this already but I should have gotten some feedback on the idea first in hindsight. Please let me know what you think on this idea!

PS Feel free to share your own app if you're looking for feedback yourself. :)