The boring front-end developer
I worked for a few years at an agency that adhered very closely to these principles, and you know what? When things started to rapidly change around 2013 everyone was consumed and overwhelmed, and when it came time to necessarily onboard them on new technologies such as build systems, css preprocessors and the like, the skepticism was so profound, and caused such a problem for those of us looking to make everyones life easier, that the process took way longer than it should have taken with loops and hoops that I hope to never have to repeat.After that experience, I fully equate the BFED with someone not ready to handle the incredible momentum of the industry and, for better or for worse, would never consider hiring them.  There are too many good ideas being born right now to risk falling into rigid patterns of thinking.