[click170]

I'm excited for the possibilities this opens up, but I have some questions.

How does this service pay for itself? If its not a for-pay service how can I know you're not trying to amass a database of info to resell to marketers?

I like the idea of anonymous login, but how anonymous exactly is this? Of course I have to auth to your site so you know my IP, how long do you keep logs for? If I don't login for 6 months can I rest assured that my IP is gone from your logs and can't be tied to my account until I auth again?

[depoll]

We will eventually have some premium services that developers can get access to that will help them engage with their users or administer their services.

As for "Anonymous" login, that's Facebook's term for the service they promised (and we don't use it in our own description of the product for exactly the reasons you mentioned). We act as brokers between apps and users for their data, which includes an identifier that can be used for login. When an app chooses not to ask for personal data, we let the user know that we won't be sharing any of their information with the application.