Wait... you want that the 100 contributions badges aren't given out anymore?
The philosophy of WikiTree is that *every* little contribution, be it a source added to a profile, a correction on the location, a sentence added to a biography, *improves* the Big Tree. Every profile added improves the Tree, because it improves the possibility that someone googles the name of a relative and finds WikiTree. And yes, there are people who add one profile at a time and work slowly, because they first make a basic profile and then immediately after that, look for more sources and write a biography. Just a few weeks ago I heard of someone: "For the first time ever I completed the 100 contribution badge." And he was happy about that.
So basically, in my opinion at least, your idea is a bad idea.