Vegans: May be unhealthy, but that's not what this paper says

 Vegans: many of them are smug self-satisfied jerks who believe they know everything about economics, nutrition, and environmental science. Even though experts in those fields realize we are just at the tip of the iceburg in our human knowledge. Yes, vegans, particularly on the internet, know their diet is sooo healthy and no one could possibly not do well on it and it saves cute puppies and you are a murderer if you eat bacon blah blah blah.