I cannot determine if he is feigning naivety or being disingenuous in the assertion that "if one is really intent on getting out their message , go to the nearest public square.....". The public square is unfortunately now social media and internet forums.
This site in not part of the public square. This is a private site. The internet in general under certain circumstances is considered "public". In other words as long as there is somewhere on the internet, even if it’s one site already in existence or one you start where you can " air your grievances" then your Free Speech rights have not been violated.
Facebook, Linkedin, Twitter.....these are now THE conduit for information worldwide. When that happens, a site owner loses some flexibility in my eyes.
Wrong, only the conduit that carries the message, the wires or wireless, not the owner of the vehicles "Facebook etc.." traveling the wire is protected. You cannot be refused access to the internet, the wire, based on your Free Speech rights you can most certainly be banned from the vehicles.
This is the problem in a nutshell. To many people do not understand how the First amendment protects your Free Speech rights from intrusion or punishment from the Government and even then there are still limits. At least in the United States not sure about the rest of the world.
To make an analogy, Newspapers can censor or refuse to print what you say. The government or competing newspapers cannot keep your from printing and circulating your own newspaper. You want the world to know how much of an AH you are , start a blog.