Currently some answers to (meta questions asking whether something is allowed) stands on both side, and some are highly voted and accepted because people standing on both side think it on his/her own side. Easily fall into, but should we? If not, what to do with such thing?
If a meta answer is unclear or ambiguous, I'd comment to say so.
If a meta answer makes the case for both sides of an argument, demonstrating that the decision is not clear cut and should be considered carefully on a case by case basis, then I'd upvote (unless I disagree in which case I'd comment/answer).