That’s the thing about choosing an instance, it’s his house, his rules. At least with Lemmy it’s like you can move out to the next building, Reddit is like living in jail nowhere left to move.
You will find this type of people everywhere on social media.
I use Tildes and is this kind of place people circle jerk how smart and insightful they are using comments. One user had this long threaded comments and I just disagree at the end, he was so pissed. Second time it was with a Redditor coming with the same toxic echo chamber bs bringing to Tildes, my conclusion many redditors are toxic users that will spoil anywhere.