I'm not saying that I disapprove of the practice. I n fact, ido consider some of it as art. What grates me are certain forum members who are extremely verbal when you otherwise alter a Campagnolo component or group by substituting a non-OEM part, yet they consider drillium OK.
BTW, I don't think any Campagnolo engineer was ever involved in the pantographing by the bicycle manufacturers. When a OEM Camapagnolo part broke, Campagnolo would honor the warranty without question, regardless of the bicycle brand. Yet, when a pantographed part broke, you were told to go back through the bicycle's distributor. Basically, Campagnolo was refusing to honor the warranty because the components had been altered.