Scale vs manageability?
I mentioned this after the last article, and that's the surprisingly long time it takes MS to actually fix an issue for all users. Seems like they can bork things overnight with a massive upgrade, but pushing out fixes for regression issues take weeks using some slow, serial process that will suck a lot if you are at the end of the line for the update.
Makes you really wonder at what point does the scale become unmanageable - not from a "we know how to do this big", but from a "it takes a really long time to fix hundreds of thousands of instances" perspective.
Maybe we're already there.
Biting the hand that feeds IT
