http://voxday.blogspot.com/2020/01/twitter-adds-new-feature.html
Twitter adds a new feature
Shadow-banning is now officially a feature of the Twitter services, according to their revised Terms of Use:
The process of limiting how many people can see posts from a certain Twitter account is commonly referred to as “shadow banning,” and many (including the company itself) have claimed that it is simply a conspiracy theory by conservatives and that Twitter does not limit the reach of content on its platform. But now, a change to Twitter’s terms of service appears to give the social media platform the right to do exactly that.
ReclaimTheNet.org notes that a recent change to Twitter’s terms of service adds that the company “may also remove or refuse to distribute any Content on the Services, limit distribution or visibility of any Content on the service…”
Twitter does not clarify what content may be subject to “limited distribution or visibility” giving the company free rein to limit any content it sees fit.