Willie O
As a club organiser,I couldn't agree with you more.
I have a lot of respect for all performers who get up there and do it. However there is nothing more pleasing than to see somebody who is obviously struggling, hang on in and complete there spot, instead of collapsing altogether and apologising or making excuses whch is just about the worst thing to do.

One thing I have realised is that folk audience are very forgiving and it is heartwrenching to see a performer having a bad night.