So online radio stations? I think its been tried a lot, for decades, and while I don't listen often it is not never. I think people gravitate towards spotify "radio" without anyone talking or podcasts for this use case though.
When you think about social audio, who is number one? Spotify is music subscription service and it's not really YouTube for audio meant for content creators and SoundCloud is stuck in time and it never really took off.
I would like to see SoundCloud reimagined with new features and ideas.