USCA11 Case: 21-12355 21-12355 Date Filed: 05/23/2022 Opinion of the Court Page: 5 of 67 5 videos, which we’ll collectively call “posts”—and then make that speech available to others, who might be either individuals who have chosen to “follow” the “post”-er or members of the general public. Social-media platforms include both massive websites with billions of users—like Facebook, Twitter, YouTube, and TikTok— and niche sites that cater to smaller audiences based on specific interests or affiliations—like Roblox (a child-oriented gaming network), ProAmericaOnly (a network for conservatives), and Vegan Forum (self-explanatory). Three important points about social-media platforms: First—and this would be too obvious to mention if it weren’t so often lost or obscured in political rhetoric—platforms are private enterprises, not governmental (or even quasi-governmental) entities. No one has an obligation to contribute to or consume the content that the platforms make available. And correlatively, while the Constitution protects citizens from governmental efforts to restrict their access to social media, see Packingham v. North Carolina, 137 S. Ct. 1730, 1737 (2017), no one has a vested right to force a platform to allow her to contribute to or consume social-media content. Second, a social-media platform is different from traditional media outlets in that it doesn’t create most of the original content on its site; the vast majority of “tweets” on Twitter and videos on YouTube, for instance, are created by individual users, not the companies that own and operate Twitter and YouTube. Even so, platforms do engage in some speech of their own: A platform, for