"When you present an idea to someone and they recognize it as good, they will take it with them and they will eventually make money off of that idea. But you will not."

I would venture to say that people have a disproportionate amount of ideas as compared to time to act upon them. People taking your ideas/advice and making money off of them does NOT translate into money out of your bank account. This is the same logic the RIAA is using to prosecute illegal music downloads.

Be a popcorn machine, but don't let them get ahold of your power plug. There is much that we all can give to help each other that will in no way harm our own income or current bank account. Be smart in what you divulge.