If you're not willing to contribute 5 simple posts than maybe you're in the wrong place. 5 posts is a really small thing to ask for.
That statement is a bit far fetched. A new member might not have anything specific to add to the
Newbies section, but would be willing to contribute positively elsewhere. I think the restriction is counterproductive and provides an incentive to post worthless material on topics that do not sparkle any interest and therefore serve as a playground for the sole purpose of racing to the fifth submission.