If an artist uses premade samples (by "samples" here I'm talking about loops, not normal sampling) and do nothing to transform it, it's generally really easy to

If an artist uses premade samples (by "samples" here I'm talking about loops, not normal sampling) and do nothing to transform it, it's generally really easy to hear. One, because it's usually quite boring. Two, usually because we've heard the samples a hundred times before and know roughly where they came from, or at least where they've been used before. That being said, most large artists do percussion and whatnot from scratch, perhaps re-using individual sounds but almost always coming up with their own arrangements. A notable artist (group) that used sampling almost exclusively is Prodigy. They're famous for coming up with unique ways to arrange old breakbeat samples and whatnot. I would be surprised if anyone had any issue with it.