It's kinda difficult from where I look at it. For it to happen 2 things are absolutely essential.
1)Responsible people doing these conversations. They'll have to keep them brief, interesting, and so many other things.
2)Responsible people who are interested in hearing the people I mentioned in 1). If there is no audience, or if the audience are usually 5 or less people, then the people of 1) are just wasting their voices.
In my opinion if we finally find people that want to do it, we should make a poll to see who's gonna hear them first. And based on that poll, decide whether it'll happen or not.
However, if the people that want to do it, just want to do it and don't care whether someone hears them today, or if 132 people heard them the day before, then please feel free to do as you please^_^