I have no idea if the courses are any good, but he does market them to programmers, and since he has put up more than one blog posting of this nature, I assume he must be getting sales.
I only think those work because they are dripping in irony. Would his target market respond to those postings if they were sincere long form marketing.
http://gilesbowkett.blogspot.com/2010/03/programmers-what-to...
I have no idea if the courses are any good, but he does market them to programmers, and since he has put up more than one blog posting of this nature, I assume he must be getting sales.