If you don't like danger rooms and consider them an exploit, I would like to know if you use Atom Smashers, Quantum Stockpiling, Water Reactor's or any other common exploit.
I'm sure most of you use at least one of the above, so think about that first...
Nope, none of the above...but I do use lots and lots of traps early on. Since there's little ability for invaders to currently circumvent traps effectively (esp. cage traps), they're sort of exploity, too, I guess. I don't use danger rooms because I like my dwarves to earn their legendary skills and to give goblins a decent change of inflicting casualties...other than that, IDC.
The upside to this is it often limits tantrum spirals to only 1/2 the fort's population as opposed to the total massacre possible with hulked-out dwarves.