YouTube Haters and some "A Cinderella Story" pics : )

I just watched Lurve's v-log about different things, among them-haters. And It just saddened me that such a nice person (no, for those who want to know-I have NOT met her, but I CAN say she is a nice person-she doesn't tell mean things to people, doesn't leave mean comments ,etc. So yeah, compared to some other ppl she may be called a nice person) has to deal with those haters. I mean she is busy the way things are already, and she has to approve comments, and now she had to disable them because of the haters..... That is just so mean.... Why do those ppl do that anyway? Why do they actually take their time to say such mean things? Why don't they just decide- “I really don't like her vids. I'm not going to watch them any more”?! No, they not only watch them , but also take so much time to make mean comments.
I was just wondering.... Cause it's quite an important issue or phenomenon right about now on YouTube...... So, can somebody please explain to me? Cause I really wanna know.

On more positive note, have you seen my “A Cinderella Story” pics? I have been wondering what to put in this “Favourite films” section in my profile, and I just thought of this film. I really love it.... Not realistic, but sosososo cute : ) Plus, Chad looks so good in it : ) Ok, before I start drooling....
Byes!