It looks like we're having some problems with some comments not showing up properly in WordPress. One of them was edited to fix some bad HTML, but the others that aren't appearing seem to have no rhyme or reason to them. If anyone on the Interwebs has some suggestions, I'm all ears.
UPDATE: It looks like the Dofollow plugin is the cause of the problem. I had to disable it to get the problem comments to work again. So much for spreading some link love.