Hey everyone, I'm the author of the post. I'm a longtime HN lurker, so I was very excited to see it shared here. I've really enjoyed reading the discussion.
A quick disclaimer: I have zero background in linguistics. The only materials I used for research were Wikipedia and Google Books (http://books.google.com/books?id=ia5tHVtQPn8C). Moreover, this is nothing more than a short post on my personal blog. So, don't expect an academic paper on the subject. ;)
Anyway, thanks for reading!