When we renamed the tag
math-mode on tex.sx, all
mathmode tag badges were revoked and new
math-mode badges were awarded. This led to all information on the initial awarding of the badges being lost. Worse even, the new badges were awarded with gold first, so that our top user got his gold
math-mode badge before the bronze one.
Since there will be more such tag-renamings to be done on tex.sx, it'd be nice if this pitfall could be ruled out first, so that tag badges are simply renamed along with their tag.