In my opinion, Tumblr has far more endurance than Posterous ever did. Tumblr is a social hegemon and is making money, neither of which could be accomplished to

In my opinion, Tumblr has far more endurance than Posterous ever did. Tumblr is a social hegemon and is making money, neither of which could be accomplished to any meaningful extent by Posterous. Even if it was acquired, it's far too valuable of a property to simply be shut down.