This bring him to raise an interesting question. Why doesn’t Gmail sends XML back and forth? Indeed, isn’t XML the data format of the Web? Here’s what he has to say:
I think he is very much on target in the sense that people who see everything as Java or C# are likely to perceive XML very much differently from people using higher level languages.
The lesson here people is that you should master a range of languages and not one or two. And no, taking a class in Haskell once in your life doesn’t qualify.