The moves, such as labeling false posts by Trump and banishing forums devoted to supporting him after years of policy violations, have taken place across the industry in recent weeks, with actions by Twitter, Reddit, Snapchat, YouTube and Twitch.

Even Facebook, which long has given wide latitude in allowing problematic posts by Trump and his followers, on Wednesday closed down a network of more than 100 accounts and pages affiliated with Trump confidante and felon Roger Stone. The action came years after his use of social media first came under the scrutiny of federal investigators and involved issues dating back to 2015 that the company said it had unearthed only recently…

“It’s about time,” said Joan Donovan, at Harvard Kennedy School’s Shorenstein Center on Media Politics and Public Policy. “The advertising pressure coupled with Trump losing his shock value means a new political opportunity is open for platform companies to treat Trump like other users. But, to be clear, he tweeted a video with ‘white power’ as its main message and he didn’t lose his account. He’s still somewhat untouchable.”