This debacle is what made me finally switch to Pinboard. Well, that and I like the Pinboard guy's developer blog. http://blog.pinboard.in/
Not to be morbid, but using Pinboard is about as precarious a practice as using Magnolia was.
That rant about hosting already was a sign of trouble.
Pinboard rests on the shoulders of one developer, then the "hit by the bus" question becomes "hit by a tricycle" question.
How do you ensure longevity for a service like this?