This is a follow-up from Fixing umbrella tag of mutants-and-masterminds. There are currently 51 questions tagged with mutants-and-masterminds. Only 9 of them don't also have a mutants-and-masterminds-2e or mutants-and-masterminds-3e tag. Since mutants-and-masterminds is already implied for the two versions we have tags for (there's only a handful of identified 1E questions), it feels odd, inefficient I guess, to have it there so often when it really adds nothing to the classification of the questions. So, I asked advice on how to clean them up, and upon getting a suggestion of doing 5 each day (to avoid hogging the front page, I did so, only to find that I'd skipped a step of asking whether the group wants this change.
I'm not naïve enough to think that Mutants and Masterminds is much of a big deal here, so on one hand, this change doesn't do much to improve the site. On the other hand, it's also so small that this isn't much disruption. We've already split out tags for dungeons-and-dragons and world-of-darkness, but some like shadowrun don't really encourage people not to put on the umbrella tag.
FWIW, each edition has been different enough that answers for one seldom help much with the others, except perhaps passing on historical answers (2E had many more questions answered for it by Steve Kenson, the game designer, where they declined to provide those explanations in 3E).