Apologies. I scheduled this post to appear this morning, and it's drawn a few comments. However, it also double-posted for some reason (we underwent an upgrade last night so things have been a bit wonky), and when I unpublished the duplicate, it also took the comments from the site. (I can see them here in the back end, and they say they're published, but they're not showing up to readers). I've alerted our technical guru, because unfortunately I don't have time to deal with this today.
More like this
It's nothing personal. For much of this morning, they're going to be moving the database to a new server, and they're going to shut off write access to it. That means you won't be able to write comments on any of the articles on scienceblogs for about 3 hours, from 9-12ET today.