Sir, its still stealing.
Think of it this way,
If you get a new Ipad (or something of the sort) and i take it from your home with out you knowing and use it, and tell people that its your ipad. You would get upset right? because i stole it from you. so don't you think these artists would feel the same?
And copying/tracing is a pretty lame way to draw, try drawing your own art sometime