Sometimes we hide our ideas, for many reasons. We don't want people 'stealing' them, we are worried that they are 'stupid', whatever.
As brilliant as ideas can be, they are even more brilliant (in my opinion) when they are made workable, and then are actually executed. Other people's input often helps with this, because everyone has different expertise and knowledge.
This community is to discuss any ideas you've had for anything :)
Well, that's my idea anyway. We'll see what happens!