I don't know. This has the potential to get under a lot of people's skin, and that's always a good thing from a VC point of view.

I can realistically envision people saying "they banned overhear.us at work" in a few months.

Question though: What stops this from being a platform for marketing - i.e. Is there a danger that the company floods the forum with bad info? What about insider information? Are you not liable if I post that my company is tanking this quarter?