I got the comments working again, all existing comments are being displayed properly.
So feel free to comment again. And just as a reminder, my policy for comments are copied below.
My policy on comments
I require a real name (or well-known handle) and a real email address. If the address sounds bogus or made up, I reserve the right to delete the comment. Same thing for trolls. You can be critical of what I write about, but then you must come with some valid arguments. Just saying “Notes sucks”, “Android sucks”, or anything similar is not constructive. If you think a product I write about is not good, explain why.