[ARCHIVE ANSWER]
If you tell anyone what you are doing, you are at risk of getting busted because it's everyman for himself. When it comes to
keeping yourself safe from snitches, trust no one that isn't as smart as you, and even then keep your eyes open. If you have a friend that keeps doing stupid shit, you will get busted. Distance yourself from that person. It’s called “leverage.”
You have to think about the people you spend time with, what you do around those people, and what they do that could be used against them by LEO. All of this comes into play that one horrible day when one of your friends or acquaintances gets busted.If you go into "the game" planning for the snitches, it goes a long way.
An ounce of prevention is worth a pound of cure. It all comes down to how smart you are.