Disqus and the disappearing comments (which still exist)
Update (just a couple of hours later): We're fixed! By all means, read the background it you're having similar problems or jump to the bottom for the solution. -------------------------------------------------------------------------------- I'm writing this post because I've pretty much exhausted all other avenues. I'm out of ideas. I'm stumped. I'm also missing a truckload of Disqus comments that should be appearing on many of the blog posts I've just migrated. Let me explain what I've done...