I've seen the same thing happen in smaller discussions among experts on Bluesky, but I didn't link to those because: 1. It's harder for non-experts in that field to judge whether my claims are true. 2. It might reveal my identity.
The incentive structure is the same as larger discussions. If anything, a smaller community makes it easier to create echo chambers, as you need to block fewer people before reaching epistemic closure.
The incentive structure is the same as larger discussions. If anything, a smaller community makes it easier to create echo chambers, as you need to block fewer people before reaching epistemic closure.