[pmlnr]

Email itself is federated. Sort of the original federated messaging.

[tptacek]

And the worst available secure messaging system.

[pmlnr]

And it's the best widely available, accessible, battle hardened, omnipresent messasing system.

[leetnewb]

What do you think of a system like Delta Chat built on top?

[BlueTemplar]

It cannot be the worst when it's not one.