Quoting Bill The Lizard:
Every question on meta-* should have one of the bold-border tags, feature-request, bug, discussion, or support.
Should we enforce this when creating a Meta-SO question, with a drop-down menu? Or if not enforced, at least strongly suggest that the user pick at least one of these tags?
Edit: As pointed out below, this actually is enforced. So my suggestion would be to tell the user before submitting that he must use one of these badges.