At least one Public Profile that I was (and still am) both following and sole Manager of was edited by someone else yesterday and there was and is no mention about it in my Newsfeed / Recent Activities.
(Also no Public mention of it in the Activity feed of the person who made the change)
If Geni is not telling us about changes to Profiles we care about then we have no reason to check them to make sure the changes are correct.
Very Dangerous.