I'll be very surprised if this particular company is a success, but I don't think it's an impossible problem and I think there is probably some sort of a business execution/insight that could make such a company a very successful startup.
The successful versions of companies in this space will look a lot more like reputational economies and alternative currencies than marketplaces for anonymous libel like JuicyCampus.
The previous open thread has now exceeded 300 comments – new Open Thread posts may be made here.
This thread is for the discussion of Less Wrong topics that have not appeared in recent posts. If a discussion gets unwieldy, celebrate by turning it into a top-level post.