^^^This. The tendency for a certain type of software engineer to go around telling everyone else they're doing it wrong reminds me strongly of this scene from Justified: https://www.youtube.com/watch?v=LG4hOjJ9tEs.
The problem with their advice is that they are not master Foo. They could tone it down a little for their wisdom is not absolute. Some rules works for some people in some situations and other rules are just practical conventions.
One good advice I found is to just plain ignore status quo, and follow common sense when the context demands it.
