I have just taken a look at his web site and he says this:
One thing you get used to when you're in what's called "the public eye" is reading the humorous fiction that others like to write about you. For instance, I have read in quite respectable and trustworthy publications that a) I'm a college graduate (I'm not), b) I was a factory worker (I quit the first day), and c) I have two brothers (I have none). Newsweek wrote that I live in a penthouse on Central Park West (I live above a Baby Gap store, and not on any park), and the Internet Movie Database once listed me as the director of the Elvis movie, "Blue Hawaii" ( I was 6 at the time the film was made, but I was quite skilled in directing my sisters in building me a snowman). Lately, my favorite mistake is the one many reviewers made crediting the cartoon in "Bowling for Columbine" as being the work of the "South Park" creators. It isn't. I wrote it and my buddy Harold Moss's animation studio drew it.
I've enjoyed reading these inventions/mistakes about this "Michael Moore." I mean, who wouldn't want to fantasize about living in penthouses roughhousing with brothers you never had. But lately I've begun to see so many things about me or my work that aren't true. It's become so easy to spread these fictions through the internet (thanks mostly to lazy reporters or web junkies who do all their research by typing in "key words" and then just repeat the same mistakes). And so I wonder that if I don't correct the record, then all of the people who don't know better may just end up being filled with a bunch of stuff that isn't true.