Complimenting colleagues - anonymously

We all know that social media has now become an information overload. Might happen same with Grapevine. I believe the only way to make it simple and meaningful is to limit the user generated content.

I'm working on an app with Grapevine like company level communities:

• it'll have app generated polls which are mostly positive feedback or just fun compliments
• users can pick their coworkers in a poll to give them that compliment
• the sender of the compliment will remain ANONYMOUS

I think this can help some of us to get the much needed good things to hear at our workplace. Can help build a better, fun and positive culture at the org level as well.

What do you guys think? Does it sound good to any of you to have something like this?