We always welcome comments. You can comment anonymously if you choose, but be aware that anonymous comments go straight to the black hole of spam because that's what they almost always are, and we only occasionally look at them. Better to use your name, or some modicum thereof if you want your comment to be published. We do moderate comments, so they won't appear on the blog until one of us publishes it, but we try to do that in a timely way. Sorry about the captcha, by the way. But it has reduced the spam coming in to zero.