Twitter community adds a context note to Washington Post tweet: The Washington Post tweeted, "This weekend, New York will host Dave Portnoy's One Bite Pizza Festival. Participating pizzerias have had to navigate buzz around the festival and backlash against the Barstool Sports founder's controversial remarks and allegations of sexual misconduct." The tweet included a link to the Washington Post article about this event. Twitter added a label to the post that read "Readers added context they thought people might want to know." The added context read "A phone call between Emily Heil and Dave Portney [sic] was shared prior to publication, in which the WaPo journalist admits to intentionally misleading advertisers into speaking negatively of the One Bite Pizza Festival. twitter.com/stoolpresident… They agreed to an interview the next day but Wapo [sic] cancelled." Twitter users are able to sign up as contributors to add context to tweets.