"This seems to be shuffling it's way around all the old arguments - all roads of which lead to "nobody has the right to criticise my singing""

On the contrary, Jim, I specifically said I didn't want to talk about people who are totally useless, refuse to learn, etc, and I didn't want to get into the hoary old "GEFF" argument. I certainly don't believe that anything goes, or should be allowed to go, in a singaround. There are people who genuinely can't carry a tune, there are people who don't think they need to learn, and they need dealing with (although not necessarily by Shimrod's method).

Just take it from me: I'm an OK singer and an uncalled-for criticism really spoiled my evening.