The good news is that investors and partners generally don't value ideas (which is why you get the "diminutive" response about ideas), so they probably won't st

The good news is that investors and partners generally don't value ideas (which is why you get the "diminutive" response about ideas), so they probably won't steal yours. They do value businesses, so if you haven't yet proven that your idea is a viable business, it's probably too early for you to be pitching anyway. That doesn't mean you have to have a lot of customers, but it does mean you've engaged your market in some meaningful way that validates your idea. If that's truly the case, then some people out there must have been exposed to your idea. If that's not the case, then your "plan" really is just an idea.