The painful part is the most basic level of research shows how fake this all is.
The OP arnaud267 does not even actively post in the LEGO subreddit. The person just showed up and said "we" like they belong there. If you bother to dig through their post history, it's all political subreddits, including an 18-day-old post about how the UK should ban twitter. To me that sounds like this "ban twitter" campaign has been floating around in someone's head for a while now, and now they're pushing for it.
And if it's not an arnaud267 being an active political poster, it's other accounts that are brand new making similar threads calling for the ban, all while ban announcements consistently have lower approval (between 50-75% upvotes) than top posts are usually used to getting.
Would bet money it's the same jannies that are always responsible for all of reddit's political "movements" having another episode where they think they're "fighting the good fight" and instead they're just manipulating the votes and engaging in censorship themselves. Dead internet theory is alive and well, because I can only guess the admins and owners put up with all of this because it at least presents the illusion the website gets far more traffic than it does.