Anonymity is one of those things that if you do not fight consistently for, will be eventually taken away from you. I fail to envision a society where anonymity doesn't really matter for most people because as long as there is a society, it'll imply there is a control structure. And as long as there is a control structure, it'll keep on dictating what you can and cannot do. Unless you unreasonably assume that such a structure will always, without a fail, be perfectly correct, in the event that you disagree with it, you're certain to be in trouble.
I'd like to reiterate once again, there is a distinction between morality and legality. For instance, it's never immoral to bring wrongdoings to light, and yet, it's horrendously illegal to expose classified government secrets, even if they are terrible.