Pretty much - does anyone actually believe these posters conduct themselves the way they do on a message board? No, otherwise they'd be picking up their teeth every day. If you portray yourself as a sanctimonious asshole on the internet then people will laugh at you. Don't want people to read your shit and make fun of you, then don't use public facing sites like era, reddit, twitter, instagram etc. Find a place that has member view only or appropriate privacy settings.
Isnt that how half their cancel threads start? Look at what this person said on twitter 8 months ago? Let's all pile on now and call them trash, racists, bigots, incels, sexists etc.