Reading the comments.... okay now I see the problem: virtually ALL the comments are like the ones listed in the OP, mostly treating it like this is some sort of discipline issue. (Just say "no" just because with no real reason for denying the child of something? That's the real issue here? And like that's what parents are totally supposed to do, right?? )
Looks like actually treating children with some bit of decency has taken a long vacation from yahoo comments at the least.