The usage guidance for closed-questions says:
This tag is for posts looking to raise meta discussions about specific closed questions, as well as for questions about the concept of a closed question in general.
In practice, one of the ways we are using this tag is for meta discussion about whether a particular question should be closed. The tag description says it is for discussing closed questions, but oftentimes the attendant main-site question is open when we start the meta discussion, and the results determine if the question remains open or gets closed.
Should we update the usage guidance to account for this? I found myself confused when trying to determine which tag to add to a meta discussion, since the question I was asking about was open, but the tag says it's for closed questions.