What exactly are the rules for massively editing/retagging questions?
Per Gilles in the chat, all efforts like that need to be approved beforehand. And I see his point. Having SO many edits flood the front page when they seemed inconsequential does make it look like a stunt. And it causes new, more relevant posts to disappear and possibly lose user viability.
But to play Devil's Advocate, why does something like that need approval when it helps the site in the long run? And why would what Sachin Shekhar did with his recent Star Trek overhaul be denied as Gilles says would have happened if Sachin asked for permission?
What would a good plan of action be for future people who want to take it upon themselves to "clean up" the site a bit? When does it become "too much" editing, where's that threshold?