Having never used github for authorization, I clicked on the sign-up button that Singly provided. Among the bullet points that github issues, this one seemed a bit more than mildly concerning.
* Update your public and private repositories (Commits, Issues, etc).
There is a zero chance of me ever agreeing to that.
This looks fine if you're a single developer working on a (relatively) small project, but what happens when you grow to two developers? Or you hand off the project? At that point shouldn't the API registration be tied to the application and not the developer?
That said, it's probably more important to lower the initial barrier for entry to drive adoption.