Recently, there was a suggestion that users should be able to disable dicussion. While I completely agree with the negative response on this, I think it would be handful to be able to disable discussion on one account if a link to another account where the same system is run is provided.
For example, I am about to publish 5 different accounts of the same system and it would be very uncomfortable to monitor all 5 different discussions, so I could lock those 4 and the discussion would only take place on the 5th account.
A hard thing about business is minding your own.