An important announcement, which by the way, only applies to one person out of more than half a million (readers of the blog).
If you want to comment about a subscription to my blog (I don't have a list), please don't comment on a post offering a discount for a book. the place to comment is privately in a message or using the CONTACT FORM on my blog. It's just common sense and courtesy, really.
And also, on the email notification there is an option to unsuscribe as well :)