[ayumisrael]

Well I wouldn't count what people who hate her say about her, even if she would have the best singing in the world they would still say crap about her.

And still, even though people not going mainly for vocal performances it doesn't seem like they hate her vocals because it's a part of the concert.
As I said it's like masochism to go to a concert where to the singer's voice is really bad.
Even fans wouldn't bare it if it would really be bad.
Also decent amount of people from here that were actually at some of the concert dates really complimented positively about her vocal performance (though most were at the first dates).

Also she still can sing at least decently or extremely well.