The author shows good taste referencing Dropwizard. Then shows deep (even dangerous) inexperience with his email type. So while I encourage writing like this, and I especially like the exercise of considering all the different ways configuration can make it into an application, I don't think this piece would be worth referencing in, say, a work argument.
Actually the email example is the best from the article, validation using external libraries is a hell and I really would like my codebase to get rid of it.
Reading between the lines, there seems to be a significant hope that an easy solution exists. Maybe a young programmer? The kind who could write the EmailAddress class because they didn't laugh adequately at the very idea?
