I agree that nobody owes the world comments but the point of a conciliatory blog post is to make people stop hating you. If they're still hating you to the point where you've had to turn off comments then your post isn't doing its job properly.

(I also agree with your earlier post that if you're selling web hosting for $3/month you'll have to deal with quite a few difficult customers. Often the people who pay the least are the hardest to deal with.)