Ask HN: Would you trade your attention for others'?

Let's say there would be a site where you can ask questions (like StackOverflow or Quora) and the site would ping experts on your field by IM, Facebook Chat, whatever so that you would be in a real-time chat seconds afterwards.

If using that site required you to grant it permissions to also ping you (and thus disturb you by demanding your attention) - would you subscribe to it?