virgina, with respect Vic or any other organiser has every right to discriminate, if he so wishes, he is the person who is responsible for financing the club
in the same way he has a right not to book a particular artist.
If a club is a singaround club, the organiser still has a right to lay down a policy if he/she so wishes, because he she is organising it, if you do not like it you can start your own club or go to a different existing club.
I hope i do not sound rude, but it all about freedom of choice, and while I prefer a club that has a no reading policy, i see no reason why other clubs should not exist to cater for those that like to go to a club and read their words.