As a person who works with many people who are family tree workers of all levels, from "newbies" to professional genealogists and historical writers, we can not discount the usefullness of new information given to us by people who find that hidden treasure in grandma's attic after the funeral. We must leave the platform open to those who have jobs, and families and other callings in life than the obsession that guides us here on this site. People are not going to want to contribute their stuff to this site if we are going to demand their time and attention, lest we take their efforts fruit, and their very family connections away from them! This would, in fact, give this site a horrible reputation!
There should be a method of supervisor-approval in the event that the profile owner does not respond with in (7 days?) a certain amount of time to a merge request, but orphaning the profine does not seem to me, to be the right thing to do... in my opinion.