Ed, Mr Walsh thinks the ranks of those who point out the excesses of creationism are more than well represented around here. He thinks the ranks of those whose attack paints a bit too broad brush, from a rational scientific point of view, are under represented. Mr. Walsh saw an empty niche, and decided to fill it, as the challenge, and for the pleasure of not only himself, but for his God. That is my take.
A retreat into a niche is one of the mechanisms supporting evolution. Do we really have a creationist "proving" evolution?
Just playing a role, eh? Just poking the old hornet's nest? I doubt it.