This could be an incredible development (or at least the start of something incredible :-). Right now discourse instances are maybe the highest quality online meeting and discussion places on the internet but they are all separate islands. Some sort of federation among them and maybe with other type of servers (when it makes sense) would open a new window. Watching this with some excitement!
Wow… things are starting to come together! Existing projects won’t need to install another service which makes it much easier to join the fediverse.