Some time ago the tag maxima-minima has been created, since then it grew 152 questions.
However, a few years ago we had we had this discussion: How do we tag questions on maximizing/minimizing functions? The result was that we should use optimization. As a result, several tags about maxima and minima already are synonyms of optimization; namely max-min, extrema, maximization and minimization.
I do not see any reason why maxima-minima should be treated differently than the remaining tags mentioned above. Which is why I suggested a synonym relatively soon after the tag was created. Since 5 months passed and the tags are still not synonyms, I decided to mention this on meta. (Either this will help to get the votes needed to approve the synonym. Or if there are now some reasons why the two tags should be kept separate, we have here place where to discuss it.)
