The Clancy Brothers do a version of "51st Highland Division's Farewell to Sicily" in which the lyrics have been changed enough to alter the meaning of the song and rip the guts out - to me, at least. I don't get offended anymore, I just go look for the song the way it used to be. It's like watching a good movie, like Braveheart, which is very inaccurate from an historical point of view. You just enjoy it for what it is, and go learn the facts later. I'm not familiar with the Corries, but the Clancy Brothers and Tommy Makem introduced me to an awful lot of songs and I've enjoyed their music.

Regarding the snobbery issue. I've encounterd it in myself and loads of other people. We like our community small, and there's a tendency to "dis" anyone who starts selling a lot of records or gets played on commercial radio stations. We dismiss great songs, simply because everybody knows them. For some, folk music isn't what folk sing, it's what only folksingers sing.