The problem is that it's not just ^D on every boot, it's "press space twice in a thirty-second window and it will unceremoniously wipe all your data without a t

The problem is that it's not just ^D on every boot, it's "press space twice in a thirty-second window and it will unceremoniously wipe all your data without a timeout." This will happen the moment you hand your computer to somebody of the sort who clicks through dialogs they don't ubderdtand, as the computer shuts off when it's slept for long enough. (The infuriating bit is how difficult it is to enter developer mode: two very secret keypresses and a thirty-second "please reconsider" grace period.)