Sometimes, people get disconnected from the live update server. Bugs, flaky Internet connection, maintenance, it happens.
I find the live updates quite useful for keeping track of new posts, but sometimes I get disconnected and I won't have any idea it happened. Could be hours before I notice the lack of activity, because sometimes, there really isn't any.
Could we get a visual indicator that tells us whether live updates are active on the current page? Here's two ideas:
a symbol in the header somewhere that changes depending on live connectivity
(?)in the title bar if the connection was dropped (not if it failed initially, no point in having it on every tab if that particular server is down)