Bullshit. Bringing someone from outside a business to a conversation that "slightly livetweets" what is being said is totally not acceptable. I invite you to bring an outside party to your next business meeting, standup or all hands meeting and have them "slightly livetweet" it. You will find the door before the meeting ends.

Businesses have every right to some level of obscurity on what happens internally. There is a very clear difference between using a tape recorder or your smartphone to record a conversation (after clearly stating that you will do so!) and having someone without any relation to the company present and blurbing everything into the ether.