It’s going to be the same when people bailed Digg.
They all complained about the interface and lack of features but then spent all their time pasting ascii images comments and starting pun threads.
I would rather there be a slow decline in Twitter & Reddit than a mass exodus. An immediate consequence is the loss of signal to noise ratio and that would be too much to take for a second time!
[Apologies for the double post - liftoff indicated that it had failed to post both times]