I get a lot of 'scrapers'.
Recently, I've been using strips of Gamma Grip Buildup sheets to build up some of the missing material and then cover with head guard tape.
Unless the frame has been worn through to the point of seeing inside, there is little danger of breaking it while stringing.
No need to trash the racquet or refuse restringing.
Of course, a little preventative maintenance goes a long way, i.e replacing the bumper before the paint shows and using head tape..
Neos 1000, Eagnas Combo 810