Ergonomy - placement of buttons of destruction

Putting the two buttons "quicksave" and "instantly and permanently delete without confirmation" right next to each other is a no-no, especially for a service that offers gigabytes of free space and a trashcan folder for most other operations.

Thankfully, they've introduced a quick undo feature, and later on extended the time-out of this button. It's still a bit scary if you think about this adjacency being implemented on many interfaces.