Why? A generation ago, a lot of people on the left felt that there was a conspiracy in what was then called the &#x27;mainstream media&#x27; to frame political discussion by not covering certain issues, like East Timor.<p>If Twitter is now part of the mainstream, how is banning unpopular opinions on the platform not censorship? Perhaps this is ultimately self-correcting and these unpopular opinions will find other outlets for expression, but I don&#x27;t understand how you can not consider this a form of censorship? Is it only censorship when its perpetrated by the government?