Today's The Day: Twitter To Start Purging Users And Prevent "Certain Content From Trending"

Twitter will begin suspending accounts which engage in "hateful conduct" or affiliate with organizations which "use or promote violence against civilians to further their causes" both on and off the platform, following a November announcement. The new rules apply to whatever Twitter deems "hateful," including "hateful images or symbols in your profile image or profile header."
Jack Dorsey, Twitter CEO
Moreover, Twitter will officially begin restricting "trending" content, to wit: