So he's giving up one inbox (email) for another (twitter)?

It's going to be an interesting experiment because people are not really expected to reply back to every message on Twitter, so will people get ticked off if Leo doesn't reply to tweets?

If Leo had instead responded only to really important emails and not every single email, would he have achieved the same results?

I hope Leo posts an update on the same two months from now, would like to see if he has indeed got rid of inboxes (irrespective of whether it is email or twitter)