Rules of my threads: I monitor my threads. If a particular participant is insulting, crude, rude to my friends or like-minded followers, I will delete their posts. I will also delete any incoherent or pointless/rambling posts to my threads
This has nothing to do with "free speech" or allowing counter point. It has to do with not wasting the time of other readers.
If you have a counter point, I welcome it. Do it with respect and with logic and your opinions are welcome. Be a pest with off topic stuff, rude, idiotic or obscene rant and you will be deleted.
If that behavior continues, you will be blocked.
I also will unfollow others who do not monitor their own threads and allow trolls to become a nuisance.
The point here is establishing a "signal-to-noise" ratio that encourages intelligent discourse and productive conversation.