Interesting.

Some of us, myself very much included, are pointing out that trying to entertain people whilst ignorant people have their heads stuck in books rather than listen to you isn't exactly nice.

Some on here think that is attacking those who need crib sheets.

No. It's attacking those of any ability who think the audience is more interested in their next offering than what is being sung at the time. That ignorance is inversely proportional to ability is mere coincidence...