It's easier to get caught up on turf and end your career trying to avoid injury though, right? I mean, why stop at QBs, why don't our RBs slide before taking contact if being tackled is that dangerous?
I don't think Bison QBs should slide except when they would otherwise take a huge hit, and I'd prefer to leave it up to their judgment. The spots you get on slides are almost always terrible too - I swear that one in Arizona was where the ref thought Cam started thinking about sliding.