Serious question here, then, if people should not change other people's "Open" profiles, what is the point of this being a "Wiki"?
That is point #1 in the Wiki Honor code: We collaborate.
If the profile is open, what is the harm in making changes? How is that not "collaborative"?
I agree that changes should be properly sourced and carefully documented with reasons why, especially when it is a major change. I also agree that changes should be thoughtful, i.e. there's no point in completely redoing a profile in a different style when someone has obviously put a lot of hard work in there. I can also see why removing an ancestor would call for a bit more of a gentle touch, i.e. lots of documenting your reasons, etc., but again, it's an OPEN profile and this is a Wiki.
Also, the problem I have with the Unresponsive Profile Manager process is that when that is done, the unresponsive profile manager loses all entries he/she has made about LIVING persons. They are DELETED. I went through the Unresponsive Profile Manager process about a year ago and the member turned back up six months later. She had been off the internet for an extended period of time. I didn't know, she could have been dead. Anyway, she lost all of those profiles of living persons and boy howdy was she pissed. Understandably so.
I wouldn't recommend doing the unresponsive PM if it all possible. Just my experience.