I didn't watch the speech, but it seems like he is not saying "people in online communities are echo-chamber safe-spacers" as much as he's saying that people tend to participate in game forums for some sort of therapy. Whether it be finding friends, collaborating against "the big guy", or railing hard against changes they realistically have no power or say over.
Communities make or break games, or at least seem to, in the Multiplayer Online world now. We're talking the communities that are built within a game. A game can be absolutely terrible, but if you have a few friends willing to take that terrible journey with you, the game can be a little bit better.
But when the community is full of shitposting and brazen attacks, and the only thing the ones running it can do is blanket-ban, clearly there's a larger issue at hand. Related to Arm, I feel like any "issues" people have, have been aired out and talked about for years now, and the fact that "nothing I want changed, changes" eventually eats away at them. But as it was said, we have divisions in the player community as well, as there should be. Those of us who post on the GDB, if the Unique Players numbers on the website are accurate (and I suspect they are not), are a decent chunk but still the minority who play this game. If 200+ people are actually playing this game a week, and I see MAYBE 50 of us posting, 15 of which on one thread, we're nowhere near a majority of players, but expect to be taken as seriously.
I'm not envious, but I'm still angry!