Bullying is never OK... both my little brother and I were the targets of bullies growing up and it was horrible. Kids used to throw gum and those sticky reinforcements in my hair, I got beaned in the head with a 3-ring binder that had a text book inside when I was walking down the hall...hit so hard my head bounced off the locker next to me...kids tried to trip me when I was on crutches, they made fun of how I looked (even after I was the finalist in a beauty competition, which meant I was supposed to go to a national competition, but I didn't go because they all called me 'Dairy Queen', because I was too much of a cow to win, I guess..). Kids used to pick on my brother because he's gay. That is especially not OK...it's difficult enough to be gay without having kids pick on you for the way you were made. They'd hold him down in the back of the bus and beat him up...day after day. I felt so bad for him. My parents fought for him, but nothing was done. They ended up switching him into a private school, which didn't really help much, but at least the beatings stopped.
And both of our experiences were before cell phones and YouTube. I can't imagine if I'd had those to contend with when I was that age. It's just so much worse now.
Kids are so cruel...and while I think some bullying is 'normal'..like 'oh, Jimmy is a wimp!' and 'Cali is a crybaby!', I think it's taken up 5000 notches these days, and something has to be done about it.