Not github, but I signed up for a service with the username 'duplicate_user_id'. It seems someone there didn't find that as amusing as I did, locked the account

Not github, but I signed up for a service with the username 'duplicate_user_id'. It seems someone there didn't find that as amusing as I did, locked the account, and refused service. I can only guess they thought it was setup for some sort of scam, but I can't imagine what.