In my opinion,this thread is becoming ill mannered.
we all care about the music we like,perhaps it would be wise,just to agree to disagree,rather than engaging in point scoring.
to get back to the original point,here are my views.
it is good manners for a guest to stay and watch all the other singers,it is good manners for other singers to listen to other performers,it is good manners to applaud performers,it is good manners not to throw beer over people,it is good manners not walk out in the middle of someones song.
it really is quite simple ,treat other folkclub members in the way youiwould like to be treated yourself.yours sincerely, God.