First question: are there any maps that bombs and hostages DO anything? I've seen them both glitched on maps. At least on churches, bomb did nothing but change flow of the game, both explosion win and defusal win gained the appropriate player higher ranks. Do not believe I've seen the hostages be saved. Maps I've seen them on: both complexes, churches, pacman.
Second, as this is a glitch on most/all GG maps, what's the proper procedure? For both players and admins. On a map like complex, hosties can be in the way, unlike bomb maps, where you can just ignore the bomb.