Stack Overflow has a close reason used when a problem no longer exists. The reason is Unable to Reproduce. Unable to Reproduce covers things like fixing typos and minor mis-configurations.
I've noticed several questions a day on Super User follow the same pattern. For example, the author of When adding google account I get 0x80004005 as an error states in the comments, "I had to disable Antibot becon to add my account. Thanks for helping." Another example is Apache2 Web Server always serves HTTP even though I only have SSL set up.
My question is, what is the Super User equivalent to Stack Overflow's Unable to Reproduce? Or should we use a custom close reason? Or maybe something else?