This post explains Dave as well as anything he has written. He has no relationship with UMinn or UW or UMIch. He probably didn't even graduate from any college or university, much less one of them. But he has made his support of those schools as obvious as possible on this site just to get attention he could not get any other way. He is gleeful that 7 people recognized him, even in a negative way. I suppose we all have that need for attention, though most of us prefer to satisfy it by other means.
Who knows, though. If it works for Dave, good for him.