I was alerted to the fact that commenting requires registration. This was the default setting for Blogger, apparently.
I dislike doing that myself, so I don't see why I should force other people do it. I am not worried about concern trolls or flame wars: they only come with popularity.
So, obscurity has its upsides.
Feel free to leave comments. I am unlikely to respond to individual comments but I will read them all.
And I will appreciate them all, good, bad and snarky.