I have decided not to allow comments on my site because they just attract spam and trolls, which I don’t want attached to what I write and don’t have time to moderate.
If you want to contact me, use Twitter.
If you want to respond to something I have written and Twitter doesn’t provide enough room, put it on your own site. If you don’t have a site, get one for free at Tumblr. Then tweet me the link (assuming you want me to read it).