personally i kinda like a little bit of clipping as long as it doesnt take anything away from the quality of the song. Ive heard a load of songs where they use clipping to warp drums into crazy sounds. drums that hit hard then almost cancel out completely and a sonic aftershock follows after it.
maybe its just in what i do, but i have come under the impression that clipping doesnt really happen until you actually compress it cause technically clipping doesnt happen unless you're playing the track really freaking loud, so loud that the speakers the sounds are coming out of cant go any louder. so really you cant clip until its being played really loud outside the computer.