Alex Jones was the prototype. Once they targeted him, to test the waters, and see that the majority cheered on censorship, it was open season on everyone. And the dominoes all feel soon after. AJ, the gutless controlled opposition, lead the charge for the major censorship to ramp up.
I notice there is a great site missing from your list. Here:
https://lbry.tv/
Thanks for the list!
I will add https://lbry.tv/ to this list in this post (it wasn't already there when @oldoneeye made this comment)