User blog comment:MB543/My proposal to Ubisoft/@comment-24092184-20131203165646/@comment-27202257-20131206211121

I was using common terminology to explain the point. While, yes, an ancestor is defined as someone whom you are directly related to via parentage, not everyone uses it that way in common language, so it was useful for the explanation. You are, of course, correct in saying that by dictionary definition, an ancestor is only someone related to you via parent-child inheritance.