Unfortunately, we’ve had serious site outages over the past few days, as well as an increased frequency of shorter-term problems. My ordinarily excellent hosting company is going through a bad stretch, and I’ll have to move away from them. (As usual, I’ll rely on http://www.webhostingtalk.com for recommendations.)
When I pull the trigger on the move, there will be a short period when I turn off comments across all my blogs. I’ll post again here to announce when that is happening.
I apologize for the inconvenience.