One of the co-founders here; we entirely agree that the concept works better in large numbers. We're particularly interested in how the site could be used for those larger classroom or office discussions, as a way to increase productivity and generate more innovative ideas. It could be really useful for social circles as well, but the group would likely have to be more than 10 people.
I think the social circle aspect might be overrated. How often do you need to speak anonymously within a group of friends, unless you're trying to stage an intervention or something?
Maybe. The premise of this whole concept is that we don't really know most people's ideas. Even our friends may have important things to say, but we would never know about them. For that reason, I can't say it categorically wouldn't work in a social setting.
