Sometimes your community will come up with (and act upon) their own ideas. Sometimes these ideas will work. Sometimes they won’t.
What I can tell you is this: most of the time, their ideas will work – and their success rate will always be higher than your own.
The reason for this is simple:
When you come up with an idea, you’re making an educated guess at what individuals in your community want.
When members of your community come up with an idea, they’re telling you exactly what they want.
Ignore their ideas at your peril.