https://techcrunch.com/2020/07/21/twitter-qanon-ban/

Twitter announced Tuesday that many accounts spreading the pervasive right-wing conspiracy theory known as QAnon would no longer be welcome on its platform.

Citing concerns about “offline harm,” the company explained that it would begin treating QAnon content on the platform differently, removing related topics from its trending pages and algorithmic recommendations and blocking any associated URLs. Twitter also said that it would permanently suspend any accounts tweeting about QAnon that have previously been suspended, coordinate harassment against individuals or amplify identical content across multiple accounts.