I have considered it. The one thing about Syncthing is that there is no true readonly way to sync. For example, someone may accidentally extract an archive in the Syncthing folder and it will sync everywhere. If Syncthing gets this feature I think I would be 100% onboard with it for LAN parties.
Resilio I believe supports it but I would prefer an opensource alternative.
Sure, I can have for example my computer be send only. But unless everyone else configures it properly as receive only, they can start pushing data to other clients. It would be far easier to have Syncthing create a readonly share similar to Librevault and Resilio.
