@cwebber sure, but today there is no standardized way for an administrator on one instance to say "hey, there might be an issue here."
While if things were to change to where there were no admins or moderators, that channel still may be useful for, for instance software agents.
I don't think of it as much as "sever-level design" as much as a side channel communication mechanism that isn't per-account. Basically a channel with different set of valid message types.