This is a pretty ridiculous article. Firstly, being self-taught has no bearing on the quality of code (or indeed anything) someone produces; it is totally (and obviously, I might add) down to the individual. Secondly, and more concerningly, you clearly suffer from elitism. If you are in a senior role and have the responsibility to coach those less experienced than yourself, I wouldn’t be surprised if you treat those people differently depending on whether they are self-taught.