[Macha]

I think the big concerns with matrix.org centralisation are:

* If matrix.org went away tomorrow, is there enough capacity in the rest of matrix for users to migrate to.

* Federation only exists when a channel has users from multiple homeservers on it - how many small/medium channels only exist on matrix.org?

* People's identities are tied to their home server. You would be userfoo:matrix.org - if matrix.org went away, how would you find all your contacts again?

Points 1 and 2 would be addressed by more capacity and more independent homeservers, point 3 would require some sort of multi-homing.

[Arathorn]

1. About 30% of the visible users on Matrix are on Matrix.org. So, yes.

2. Almost all public rooms seem to have users from other servers.

3. Account portability/multihoming is in the works at https://github.com/matrix-org/matrix-doc/pull/2787