If you’ve had trouble commenting on the blog, then I apologise for that. I tried everything to get the 403 Forbidden errors to go away, and in the end I contacted my webhost, who tracked the issue down to a single line in my .htaccess file that had been put there by my security plugin to stop spammers. Apparently, it was also stopping some legitimate comments, too!
So, in short, if you’ve tried to post a comment before but couldn’t do so, you can post them now. Sorry about that!