Never had a Kernel issue on either of my iMacs. Course I run legit software. Whats that like?
Grey screen, rather than blue. Same thing though; an unhandled exception due to hardware or software renders it impossible for the motherboard to continue running. I’ve used a lot of Macs and they are certainly not immune to it, but it’s rare. On the flip side, I recently rediscovered a PowerBook G4 from 2004 in my loft that I haven’t used for 10 years - powered it on and it booted fine! Damned things won’t die.