What on earth are you on about?

Literally every time someone asks about painting, people remind them that paint is only original once. Likewise, they are reminded that you can't undrill a frame. And I have never even once seen someone advise hacking off a derailleur hanger or shifter bosses.

Your entire rant seems without cause to me.

And regardless, it *IS* their bike to do with as they wish.

Have you been into the rum again, Randy?