Quite possibly, places like Reddit and Hacker News, are training for the required level of intellectual smugness, and certitude that you can dismiss every annoying argument with a logical fallacy.
That sounds smug of me, but I’m actually serious. One of their defects, is that once you memorize all the fallacies (“Appeal to authority,” “Ad hominem,”) you can easily reach the point where you more easily recognize the fallacies in everyone else’s arguments than your own. You more easily doubt other people’s cited authorities, than your own. You slap “appeal to authority” against a disliked opinion, while citing an authority next week for your own. It’s a fast path from there to perceived intellectual superiority, and an even faster path from there into delusion. Rational delusion.