What do people think of the idea that Farcaster might be *too polite*? Like, people love to rail against the toxicity of twitter, but ultimately it's a PvP MMORPG and lots of people really enjoy the PvP - if not participating, then at least seeing some fireworks in the background...

Echo chambers generally have far fewer disagreements. The market for creating such spaces is huge because disputes take a lot of effort and generally will hurt feelings, but that does not mean they can't be constructive. Positivity and hype can be as toxic as any kind of lack of consensus and fierce disagreements.