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To be clear, my point was that the affordances of the site, and the dynamics that fall out from them, have nothing to do w/ btc-as-discussion-topic, although they are enabled by btc/lightning. The site as it currently exists probably doesn't work for a person who doesn't care about btc at all.
However, given things that btc touches (basically everything) it's not hard to imagine making a place where you can talk about some of those other topics too, similar to how now you can talk about nostr -- big macro things loose in the world. You can hardly talk about this on the wider internet bc the business models almost never work -- monetizing outrage via advertising, etc. SN doesn't have that business model, although I guess the current one could fall into a similar sinkhole as a failure mode: rich assholes could pay directly to signal-boost rich-asshole-friendly topics. But that would be a level of directness from specific and identifiable nyms that would still be an improvement over the existing state of affairs, imo.
Honestly, the very tiny friction in having to connect btc rails to participate is probably enough to eliminate 90% of bad actors. The remaining ten percent can only ever be dealt with by actual community forces -- if most of the people don't like others being aggressive jerks, then aggressive jerks will tend to not take root; if the reverse is true, they will. That's not a technical problem, but I think SN is building the tool set to addresses it as well as it technically can be.