A lot of air saws pass through eBay now and then. They're used is hazardous or wet environments, or years ago when powerful gas motors were too heavy. Quiet, too. I remember seeing a photo of some guys out in the boonies with a halftrack carrying an air compressor running one of these things.
The whole "not xx" thing on eBay ticks me off to no end (if I'm looking for a Husqvarna, I'll ???? well type it in), but I've never seen an auction pulled because if it. A huge number of saw and power tool auctions are put up by sellers who list them that way.