I think there's another implication at work. If the platform enables recordings, and stores those recording in its cloud 'puters, one could demand it be account

I think there's another implication at work. If the platform enables recordings, and stores those recording in its cloud 'puters, one could demand it be accountable for things that are being said on it. It's as if the police learns a group of terrorists used a local coffee shop to meet and go through some details of their operation, and then proceeds to arrest the coffee shop owner not on the grounds that he knows the suspects (for the sake of the story, he doesn't), but on the grounds that an incriminating conversation happened within his walls and he had the chutzpah to not have the place bugged, in case someone is going to need those conversations and so that the owner can be held responsible for the conversations people have in his shop. In fact I won't be surprised if at least one of replies to this comment expresses a genuine lack of understanding what's wrong with this story. Just sad.