Richard Bridge,you have imagined,that anyone here has talked about auditions,in the same way you imagined that I said I was good,you have accused me of being conceited, because I have a different opinion to you.
your problem is that you are interpreting other peoples posts,to mean something,that they dont mean.
I have said at least twice,that if I was guesting at a folk club,I wouldnt mention my opinions[on word sheets]unless someone specifically asked,I would then try to be diplomatic in my explanation.
   Isnt the most important thing ,that people [as well as/other than the perfomer] enjoy music that they pay to go and see.
the club organisers have to make some sort of decision ,about what music is provided[they dont need to audition people],if someone does a floor spot and is bad and shows no sign of improvement,the organiser hopefully can suggest ways of improving[hopefully in a tactful way]then in a couple of weeks give the performer another song,and sandwiching them between stronger performers.
to use the words of Mr Punch[thats the way to do it]