Sorry if what I said about "definitive versions" confused Mr Happy, and he then got slapped down for repeating what I'd said, and wrongly attributed with having made the comment in the first place! Seems like a classic example of the folk process to me!
I was referring to discussion on the corrections thread about what goes into the DT: once something's in there it seems to get taken as "the definitive version" and may become hard to get changed.

I don't have too much problem with folk changing things (accidentally (or even on purpose) if they don't make a radical difference to the meaning of the song: the interchanging of say "and" and "but" or inclusion/exclusion of a word like "sometimes" makes little impact, but if it is a complete nonsense, then yes. I will protest.
But having said that, in "Flower of Scotland" a lot of people sing "be A nation again", when in fact what Roy Williamson wrote was "be THE nation again". A very minor difference in terminology but quite a big difference in meaning!

And re Eric Bogle's "floures" or "floowrs", that's his Scots pronunciation: if you can't do it, Flowers is fine!

Yes, and I agree with Mr Red about correctly crediting authors: it' s usually simple to do your homework these days thanks to the internet and find out who wrote something or where it came from. (if you get conflicting answers take the majority or most credible view!)

Two recent bands at our local folk club have been guilty of howlers of incorrect attribution of origin of songs, despite distinct geographical references in both songs. A little Googling (or geographical knowledge) would have easily got them the right answers.