A. It sounds like you care about your family history, because if you didn't you would have just left WikiTree and not said a word about the profiles to anyone.
I am interested in why you say you have no means of telling or finding them. WikiTree is free, and there are other websites that you can use to find sources that are free.
Whatever the case may be, thank you for bringing these up in the g2g forum so someone has a chance to take care of them for you. Maybe you might want to orphan them so someone could adopt the profiles you do not want.