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 :
![profile for Prem on Stack Exchange, a network of free, community-driven Q&A sites profile for Prem on Stack Exchange, a network of free, community-driven Q&A sites]()
For the 10M Milestone :
SOreadytohelp
Waiting for the 100M Milestone