[politician]

From my perspective as a digger during the Digg exodus it snowballed because a viable alternative existed at the time that the trigger event happened (Reddit, Digg v5).

There is no viable community for redditors to flee to this time, but there are probably dozens of teams of people spending the long weekend attempting to cobble together replacements for Reddit.

I've said elsewhere that I'm confident that Reddit will muddle through this debacle because they're the only game in town. But a highly-active contingent of their user-base is now in play, competitors will appear on the horizon over the next few months to draw them away, and they may succeed.