While I completely agree that the guy is nutty and was meddling where he did not belong, the funniest thing happened -- when it came to the day when I usually take my tree down [New Year's Day, simply because it's a day when I am not working], I found I simply could.not.do.it. Why -- because the pretty lights cheered me up on a dark winter's morning and evening!
I found myself thinking of this thread and thinking, hey, maybe there is something to the theory that the lights help stave off the dark . . .