Anybody know why this answer is credited to "Tony Stewart" instead of his current username? (If you click on the username, it takes you to his current user page, so it's not because somehow one of his sock puppets failed to get merged to his new account)

All of the answers there are "community wiki." I'd guess that the name fields aren't properly linked to the current names like the regular answers are.

another question for duping

"How to save state and continues after a restart?" have been asked a good few times.