As you may know, on Friday about 11 hours of comments (and posts) were disappeared from the blog. This appears to have been a glitch on the redundant database servers that store most of the data for the site. In technical terms, the servers stopped synchronizing data in the late morning and in the late evening, one of them crashed, losing a big chunk of recent data.
Sadly, those comments and posts are not recoverable. I apologize for any inconvenience that this has caused.