Well, there’s a limited number of amputees actually going in front of the camera, especially quadruple amputees. Art communities frown upon drawing amputees due to stigmatization of weird fetishes, so only a select number of them will draw it for you despite it’s being easier for the most part, and even then getting a whole comic etc. drawn would cost you an arm and a leg. If it weren’t for the training material I’d say it’s better than sharing SFW photos and videos nonconsensually of amputees, but there’s also the issue of the environmental impact.

Drawn amputee porn is sometimes weirdly wholesome, as it sometimes depicts taking care of them, with the fucking of course. Some dabbles into body integrity dysphoria, a very rare psychological disorder, many of whom wish to be amputated. But some are of the nonconsensual types, sometimes even showing the amputation (although there’s those with consensual amputation), that gave the genre the bad name.