Primarily I do web development, with python and ruby, TDDing is VERY well supported, and thus has allowed me to do it exclusively. But I can imagine there are

Primarily I do web development, with python and ruby, TDDing is VERY well supported, and thus has allowed me to do it exclusively. But I can imagine there are systems out there that are difficult to TDD, web apps are not among them though. Sounds like you are interpreting TDD in a rather extreme way. If you haven't found it useful, then fine don't use it. But that doesn't mean it is universally bad, and thus doesn't deserve the "It's all hocus and you are a stupid zealot if you do it"