Zuckerberg can't change the past where he was guilty of massive censorship. But he cleverly understands that he can try to get people to forget... Some people may do just that, personally I think he's a no good, greedy piece of garbage and will have nothing to do with him or his products.
He has good reason to be scared, most have woken up and smelled the coffee already!
The last reports I read are saying that people are closing thei Facebook accounts like there's no tomorrow, and I'm sure Mark knows it well.