Honestly, the powers that be probably prefer people have these discussions online. First, most people who post even inflammatory content like Luigi memes are just venting. I’ll make such posts and comments, but honestly, never in a dozen lifetimes am I personally going to attempt to repeat his actions.
Second, the thing about the Internet is anyone can read it. Machine learning is deployed right now at a vast scale to trawl all corners of the web and find any instances of people actually actively planning acts of revolutionary violence. As tools for plotting actual acts of violence, social media sucks. Luigi succeeded because the whole thing was plotted in the one place the NSA can’t probe - the contents of a single man’s mind.
Third, you have to look beyond the Day of the Great Banning that you propose. What happens next? Well, tens of millions of disgruntled progressives and leftists are still going to want a place to vent or make their feelings known. And if the Internet is out, that just leaves good old fashioned IRL organizing. And it’s a hell of a lot more difficult to monitor in person groups that do all their activities with pen and paper than it is for bots to monitor social media for potential threats. Also, when people meet in person, they start discussing en masse various means of fighting back, non-violently or violently. People meeting in such groups can also radicalize each other. Someone who once was content just to post a Luigi meme might instead become radicalized and seek to hold in-person protests to call for his pardoning, hold non-violent actions to disrupt the trial, or in the extreme, even form a violent group to try and bust him out of jail. Fewer people will be willing to go up each step of that ladder, but the potential exists.
Really, social media largely serves the powers that be. It’s like an emergency release valve for society’s collective rage. It doesn’t have no effect, over time it can shift the zeitgeist enough to eventually effect actual government policy. But no one is going to successfully cook up a neo-leninist uprising on any fediverse instance, let alone on Bluesky. In a world of hyper-monitored electronic communication, any real revolutionary acts are plotted in person, on paper, or through entirely private encrypted communications.
Thank you!