“Now, if you’re a typical weblogging type person, and you start your personal site and later add something like a Donate via PayPay button do you violate the license? What about if you write a book, and mention it on your site? Or write articles and sell them from your site? Or just link to sites that paid you to write articles for their site? If you get a freelance gig from your weblog, do you need to get a commercial license immediately?” [ more via RasterWeb]
He raises some very valid points about the MT license. Worth the read.