That's a real good idea.
Honestly, some of this was caused by not fully thinking through changes. When we started, we just had you enter the basic name on the first page, then it did the search, then you either created the profile or not. But users kept asking for the ability to add more and more info on the first page. It was just recently that we added the ability to include biographical text and source notes. I'm embarassed to admit that I didn't think about how frustrating that would be if you took the time to write a bio and then didn't have the profile created.
I like your idea about the Unmerged Matches. Or should they be Proposed Merges?
I'd hate to see people recreating entire lines that later need to be merged. How would we discourage that? We could just include explanatory text. Not that anybody ever reads explanatory text.
Anybody else have input?