Zuckerberg told Mosseri in a 2018 email that even as Instagram grows to include more public entertainment posts, it “can never exclusively be for public figures or it will cease to be a social product.” Meta has been arguing that the social media market has changed so much that entertainment is a key focus of social apps including Instagram and TikTok, but the email suggests that at least at the time, Meta’s CEO felt that connecting with friends would always need to be remain a core use case.