What should we stop doing?
I think we should stop insulting people! The world would be a so much nicer place if people cared for one another and don't resort to insults if someone did something to offend them. It's better to remain an open mind and respectfully tell someone that you don't approve of what they've done to you!
It is very true that a lot of people are mean to others for no real reason. I think a lot of this is because of immaturity.