A question (Did blowing into an N64 cartridge really affect whether or not the game would run?) came up in Retrocomuting that as been already answered in a different Stack Exchange area (in Arcade/Gaming as Why did you have to blow into an NES cartridge to make it work?). Now it's not possible to close it as double question, as this works only with questions within the same area. One user already pointed that out as a comment, and I wrote up a short answer with a pointer, but it feels unsatisfying.
So, what's the right way to handle it?