I also think it greatly depends on how defensively or not you ride a coaster.
If you get on an Arrow looper after riding a B&M hyper and ride it the same way, the Arrow looper will hurt. If you ride it defensively it will not hurt as much.
I also think enthusiasts care a lot more and are more sensitive to roughness than the GP. We understand how good rides can be, and like to rip them if they aren't perfect.
Basically I think we all enjoy in some way riding rough coasters, or we wouldn't ride them. If I go to a park with a togo stand-up, I'm still going to ride it and have a good time, even if I expect it to be bad.