Only problem with that statement, is that, it has to be across the board. Which of course it is not, so that point will not stand up in court. The reason being, some people are allowed to spam repeatedly. I have proof of that which will show up in court.I haven’t said that I’m an attorney. You said that you are an attorney.
Some clarification for you: Individuals have no First Amendment right to speak on social media (which includes message boards), since that's a right guaranteed against government censorship. In fact, courts have ruled that platforms have a First Amendment right to ban people they wish to ban.