It's much better than calling it wool, in my opinion. But that's just my opinion, and I'm probably something of a wool snob.

As I see it, there's one of two things happening here. One, AllScottish is still not entirely clear on the difference between acrylic and polyviscose. (I'll give him the benefit of the doubt that he's not being dishonest.) Two, he actually is selling a polyviscose kilt, but hasn't bothered to actually take pictures of it, and is using photos from another kilt, presumably one he sold some time earlier. If the former case is true, he needs to learn to distinguish acrylic from polyviscose post-haste. It's part of his responsibility as a reseller to know the product he's selling. If the latter case is true, he needs to take pictures of the product he's actually selling.

I suppose there's a third possibility that I'm wrong, and there are, in fact, polyviscose kilts in the tartan pictured in the auction. I rather doubt it, though.