.....i see your logic, now see mine.
If your idea is already a few steps ahead, its fine to share.
No idea is unique , everyone ispretty much doing everything .
However, from experience, its best to speak with private investors and keep part of your plans secret until you're good to go.
There is a reason companies secure patents before releasing a product .
Running a business is hard, especially when one has little cash
If it were $1m up for grabs, then i would be inclined to risk sharing it to the world.