> Every platform that is public and anonmyous runs afoul of this, this isn't just twitter. You can look at Youtube comments, reddit, pretty much any forum.

We had ways of dealing with this on Usenet back in the day. 1) Thick skin, and 2) killfiles. Generally, killfiles weren't for people with whom you disagreed (though they could be, if you wanted), they were for people who were assholes.