>Viewing anonymous posts on the internet is almost always voluntary.

No it isn't. Social media is a near required part of modern life for a lot of people, especially those in the public sphere. For example, it is near impossible to be a freelance journalist without a social media account. Once you have that account, people are free to push their anonymous posts to you.

>This is closer kin to victimless crime as opposed to real crime than it is conditional rules of engagement.

This is just a baffling comment and shows you are out of touch with the type of abuse we are talking about. I can't imagine you have seen any of this first hand if you think this is "close kin to victimless crime". There are very much victims on the end of this abuse.