I'm gonna preface this with "I've never had the CRJ-200 to FL410".

That said, I don't see any reason why it would be a "bad idea" provided the aircraft weight/ISA temps allowed for climb and all appropriate climb/cruise speeds were maintained. Doing MCO-DCA one night on the go-home leg we were at FL370, riding a tailwind, doing .81M. Sure we were fairly light but the airplane performed just fine and aerodynamically speaking there's no reason why 4,000ft higher wouldn't be a safe altitude in that plane **IF** the crew did their job.

Then again, that's the rub with everything...now isn't it?

(perhaps taking the CJ to FL450 on every trip over 400nm has me a bit 'meh' about the novelty of flying high)