[tjosten]

Funny you ask, me and other people built something like this a few years (actually 7 years…) ago. It never really got past a few hundred initial users, thus has been shut down meanwhile.

https://news.ycombinator.com/item?id=5125028

[apexol]

Wow, there we have it, a person who has already implemented this idea a long time back. So what made you shutdown the service? Would you be willing to share your experience?

[tjosten]

Simply put, lack of time maintaining it. It was rather a weekend-hack than a polished product.

[apexol]

But you had 100+ users, so the idea was validated.