It can work as a migration path for those on the fence, and that could still work in a decentralized manner.
Example: I run a Mastodon instance on communick.com. I am thinking of running a nitter instance AND a secondary instance of Mastodon (or Pleroma) that acts as twitter mirror. I can then let users of the main communick instance to follow people on twitter, but still keeping them inside the Fediverse. The idea gets a bit more complicated if we want to make it two-way bridge, but I believe that can be done with a bit of Pleroma's MRF magic.
The beauty of this solution is that it does not require any change from those that have no interest in moving out of Twitter, but it does break the garden walls.
Example: I run a Mastodon instance on communick.com. I am thinking of running a nitter instance AND a secondary instance of Mastodon (or Pleroma) that acts as twitter mirror. I can then let users of the main communick instance to follow people on twitter, but still keeping them inside the Fediverse. The idea gets a bit more complicated if we want to make it two-way bridge, but I believe that can be done with a bit of Pleroma's MRF magic.
The beauty of this solution is that it does not require any change from those that have no interest in moving out of Twitter, but it does break the garden walls.