When you're surrounded by all these people, it can be even lonelier than when you're by yourself. You can be in a huge crowd, but if you don't feel like you can trust anybody or talk to anybody, you feel like you're really alone.
The sadness of the women's movement is that they don't allow the necessity of love. See, I don't personally trust any revolution where love is not allowed.
In our minds, love and lust are really separated. It's hard to find someone that can be kind and you can trust enough to leave your kids with, and isn't afraid to throw her man up against the wall and lick him from head to toe.
Let's say a Soviet exchange student back in the '70s would go back and tell the KGB about people and places and things that he'd seen and done and been involved with. This is not really espionage; there's no betrayal of trust.
Espionage, for the most part, involves finding a person who knows something or has something that you can induce them secretly to give to you. That almost always involves a betrayal of trust.
A more important reason is that the bands will intuitively trust someone they think is a peer, and who speaks fondly of the same formative rock and roll experiences.