So here’s the issue with Negentropy, aside from the high complexity.  It potentially speeds up syncing on relays (basically web servers), but there’s a catch: it could spread stuff without consent. Consent’s pretty key, especially with personal things—imagine someone’s kids’ photos popping up in places they never expected. Since relays are web servers, they’re still under consent rules. Free speech? Absolutely important. But, as nostr has come be be used (asa social network), so are privacy and control. Relays that advertise Negentropy might end up liable if users (like parents) see their content somewhere they didn’t agree to. Efficiency is good, but it shouldn’t come at the cost of consent.  Our small relay network puts itself at risk of take downs, and we cant afford to lose too many more relays.  Make it opt-in and let those relays take the risk.