I don't think people do do that, do they? Surely this is something that people make up as an accusation against differing views.

As I said earlier, the few times I've encountered self-confessed Purists it was to tell me 1) I was in causing offence by using an electronic Shruti Box, 2) contravening some holy law using a Turkish fiddle for accompanying traditional English folk songs and 3) that I was by using self-looped phrases and drones on a Kaossilator I might as well be using a backing tape. In all three cases they called themselves Purist, and in all three cases they were fecking idiots.

Mercifully such incidences are rare!