My Caching partner and I have had this discussion several times, and we both agree that having a mandatory minimum number of finds prior to making your first hide is a great idea.
We've come across several caches in our area that have been placed by cachers with less than 15 finds, and in 90% of the cases, the caches were poorly placed, poorly designed, or had poor coordinates.
I understand learning from your mistakes, but getting pissed off in response to suggestions from more experienced members is just ridiculous.