I don't think your story about Twitter banning skepticism about surface cleaning is true. I remember being involved in several long Twitter threads on that topic with no one being banned.
Just because you didn't see it happen, doesn't mean it didn't happen. If we accept your report at face value. all you've proven is that their algorithm isn't 100% comprehensive regardless of impact/number of followers of the people, etc.
It seems far more reasonable to me that if POTUS or $randomCelebrity tweets something it will get more scrutiny from the moderation efforts at Twitter than I would if I tweeted the same thing.
