nevilence :
they've always been into that sorta thing =P
I assume by that you mean they've always been locking the bootloader, not the humor aspect... Back when they let Verizon control them.
you'll note the sprint version is already unlockable, so its Verizon and ATT forcing a "developer" edition to get past the BS carrier red tape.
The "if you load software and brick it cause you're an idiot" disclaimer is basic common sense. If I bought a PC, wiped the recovery partition and couldn't boot because I tried to install an unsupported OS that's my own fault. They don't owe me for breaking a working system.