The tag typo has the following tag wiki:
Some questions later turn out to be based on wrong source. Often, these questions turn out not to be real questions, and ideally should be removed, but that does not necessarily happen. This tag is for marking such questions.
and I think that it is used consistently with this tag wiki. However, this is not what the English word “typo” means (it means “typographical error”). What is a better tag name?
Just in case, this meta post is not about whether we should keep the tag typo or remove it. If you would like to argue that this tag should be removed, please post a separate meta post for that.