Mz, actually, Backupify is still going strong. This wasn't a "where we went wrong" post. It was a "we built too short-sighted" post and now scaling is painful.
As for "short sighted", sometimes the best way to get to tomorrow is by making it through today. Growing pains are inevitable. It is not a question of "if" it hurts. It is a question of when and how. The things which smart tend to be somewhat personal and unique. What bothers you might not bother me and vice versa.
Peace.