I use the term "hiccup" to refer to an unusual. one time problem that can't be replicated, can't be diagnosed or solved, and disappears on its own. The unanswered question pool has many of them. A new one occurred a short time ago: Programs require admin to save to second HDD. In this case, the OP was considerate enough to at least post back a comment that the issue went away on its own. But the question is still there, unmodified, attracting people to spend time determining if they can help.
On many sites, "solved" problems are indicated by adding [Solved] to the title. Superuser is more about the questions and answers than whether an OP solved their problem, so that mechanism probably isn't appropriate here. But it seems like there ought to be some method to indicate closure for these kinds of questions, which will never have an "Accepted" checkmark to serve that purpose. What is the appropriate way to handle these?
- Should it be handled differently if the OP states that the problem is fixed vs. finding an old, abandoned question that is recognizable as a hiccup?
- Is this an appropriate use of close question (simply marking it closed will accomplish the purpose)?
- Should it be deleted on the basis that it is of no use to anyone else? (Does a question of no use to anyone else fit the definition for the site?)
- Is there some other way to indicate that the question does not need an answer? (If a question doesn't need an answer, does it fit the site's definition?)