"Walker" is leaving comments as "Brian." I've proven that he is, because the IP address he used for "Brian" was the same as for "Walker."
I have things to do today that may keep me from deleting his lying, trolling comments for a while. Just wanted people to know that this guy not only can't speak the truth in his own comments, he also doesn't have the guts to comment under his own name.
[Update: I'm away from home today, working on a remodeling project with a nail gun. Which, believe me, is a lot more satisfying than dealing with troll'ish comments. When I have time I'll make screenshots of Walker's IP address as recorded by TypePad, and also of the IP address of the commenter posing as me -- which will be seen to be the same IP address, and so the same person.]
[Further update: here's screen shots of the comments left by "Brian" and "Walker" within a few hours of each other. Note that the IP addresses are identical, proving that the same computer was used to post both comments. Yes, Walker was posing as me -- an utterly reprehensible action.]