After my little screwup, I’ve managed to get all of my posts back (thank God for Google Reader), and all of the comments from before the 15th of Feb. Comments from after that (and from your good selves) will be restored at some point; it’ll just take me a while to get them out of the inbox and onto the database.
My own comments, alas, are lost forever. Oh well.
Now, if you’ll excuse me, I’m away to headbutt a wall for ten or fifteen minutes.