Stack Exchange network consists of 176 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
When I enrolled here, I got "user3057742" , which might be a totally random number or a sequence number indicating the number of registered users.
Here is my current "flair" status :
For the 10M Milestone :
Waiting for the 100M Milestone