Yeah, I do get that. The Stargates definitely suffered from the same problem, where the secrecy was a central part of the show's premise, even though any rational person would've alerted the whole world to the existence of aliens bent on wiping out human life. (At least the Stargates have the excuse that the government's in control of the information...)

I think it's gotten to the point with me on SPN where the usefulness of telling everyone, or at least of telling SOME people, is too obvious to ignore anymore; and there's not enough squee to make up for it. I can ignore anything if the show is entertaining enough to make up for it ...