As a counterpoint to the extremely negative commentary I'm reading in this thread, I like "the present your authentic self without turning on your camera" bit. Sometimes I don't want to wear a shirt (or pants!) at home or don't want to be surprised absently rubbing my jaw in thought or making a weird face.
I love to see innovation in the space of remote work tools and I can confidently say Slack and friends ain't it. I want a experience of serendipity-making leveraging some of the same mechanisms physical office goers make use of.