Comment by alpb
9 years ago
2561 members are the ones who made Microsoft org show up on their GitHub profile. By default, GitHub does not list your orgs on your profile. And many people are simply not aware of this, because your profile page looks different to you and others. You don't realize this until you visit your profile from incognito window or something.
The actual people count in https://github.com/orgs/Microsoft/people is twice as much. (I can see the actual number because I'm in the org.)
Oh, I didn't know that.
But it's still obvious that this is not the metric that was used.