Bridgy Fed, a bridge between the Fediverse and other protocols such as BlueSky, is using an opt-out model and that raises a lot of discussion

Opt-out is a terrible default and should be reconsidered · Issue #835 · snarfed/bridgy-fed

It should be pretty obvious that a decentralized network that many use specifically to not be connected to centralized networks houses mostly people who do not wish to have their posts bridged to B......