Yea, if you want a saw to work with, the important issue isn't how many scratches are on the paint, but what is the compression, visual check of the piston, are bearings tight, seals OK, clutch condition, oiler functioning, ignition working, etc. Carb rebuilds and fuel line replacement are trivial quick fixes, so these never discourage me from an otherwise great saw. However, if you want a saw that's pretty on a shelf, then paint scratches become a bit more important (matching paint isn't easy!). Bottom line is if it has the qualities you want, then buy it. If in doubt about an items condition, then ask the seller first.
my $0.02 (we're up to at least $0.04 now!)
Dan