It reminds me of the standard joke about veganism: "how do you know someone is vegan? Don't worry they'll tell you"
It's a very ironic joke, because the people I hear talking about veganism the most are non-vegans complaining about veganism. In this thread too. All I see is people complaining about how dogmatic clean code people are, and I see no examples of that in this thread. The only strong and absolute language I see is from those who are complaining about CC people.
Bear in mind, I don't have a dog in this fight. I'm not vegan, my methods are sometimes longer than four lines, and I do occasionally write a comment. But if this thread is anything to go by, the clean code folks seem a lot nicer to work with than the reactionaries.