I have to ask, I know ideas aren't worth anything until you execute, but doesn't throwing your idea in front of a large audience of other entrepreneurs and indu

I have to ask, I know ideas aren't worth anything until you execute, but doesn't throwing your idea in front of a large audience of other entrepreneurs and industry leaders potentially lead to a lot of extra competition? This sounds really cool to me, but I'm a bit hesitant. I like getting feedback, but usually from people I can trust (which I know is a biased sample).