It is a good question, but no, I don't think anybody will be able to tell you more than what's in the "Business Model?" section of the article: But, as sta

It is a good question, but no, I don't think anybody will be able to tell you more than what's in the "Business Model?" section of the article: But, as stated above, there is currently no pay model, and we're not trying to make money. We're testing a product right now, and we'd like to bring public keys to the masses. They say they won't sell ads or data, and however they make money will be from organizational users with a goal to provide a useful free tier that can be used by every person in the world. I assume that means that in addition to staying free, it will get easier to understand over time. It's pretty nebulous, but at least they are saying the right things while saying nothing... :)