I posted yesterday that I realized that the Drupal had been down for a good long time, not that there was a big outcry or anything :-)
The truth is, I don't have any earthly idea how long it's been down, but it's been awhile. Not sure how the permissions were changed on my index.php, but they changed.
Then, I noticed that when I viewed an individual post, I had a whole slew of errors on the top of the page, including
Unknown column 'u.signature_format'
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