When someone uses it as a cheap or lazy man's alternative to fix up a dent or rust and piles it on as if he's rendering a wall......then that's a different story. I'm not against anyone doing it if that floats their boat, their car and they can do what they want, but its a major turn off when trying to buy a car.
I looked at an EJ Premier some months ago. The dude had bogged up part of his bonnet and guard where he'd had a small bingle some years back. The bog and paint were starting to crack and actually lift. At best, the thing now needs a bonnet and a guard, plus respray on those 2 panels.
Once again, apologies for going a bit off topic