Troll.

You have never met Dave, you have never communicated with him, and you assume that he may not have kept up to date on teaching trends for 40 years. Hey his classmate was Donald Freeman (heard of him, right?). He must be an idiot, too?

Honestly, whats your problem?

"A person whose sole purpose in life is to seek out people to argue with on the internet over extremely trivial issues. Such arguments can happen on blogs, Facebook, Myspace and a host of others. The best thing you can do to fight an internet troll is to not answer."