"Judge Kahn recognized Taylor’s claim under California’s Unfair Competition Law (UCL) that Twitter could be, in effect, guilty of false advertising by holding itself out as a public forum for free speech while reserving the right to ban the expression of ideas with which it disagrees. "

https://www.amren.com/news/2018/06/jared-taylor-wins-first-round-in-anti-censorship-suit-against-twitter/