i agree, if he wants a lowered wagon, let him lower HIS wagon as low as he wants, car customization is about how it make you as the owner feel about what youve done with your ride, as for myself, i have a 2wd sedan that is about to b slammed, and a wagon which will b lifted 2in w 27's stuffed under.
but at the same time, no, cutting springs does not improve the long gevity or performance of your vehicle, but, it sure can make it look cool, just be careful and plz post pix afterwards..