It was created in 2007 with this notation:
"Created this page in order to spark discussion about good ways to get one's own information corrected."and has been modified over the years a few hundred times. It's not official (there are plenty of lengthy "official" pages on the topic), but it's mildly entertaining.
I didn’t know that there were plenty of lengthy “official” pages on the topic of correcting errors in your own page.
I’ll bet Mandel hasn’t done the research you did. Your information reinforces my conviction that she just wanted to complain about Wikipedia.