Huh? It's trivial to write code that detects shadow bans, and bot-makers are more likely to write such code than individuals who get shadow banned. I mention this at 28:00 in the linked video on this post.
The fuss over bots makes no sense to me. It's just an excuse to build more dystopian shadow removal or shadow demotion tools. Bot or not, some human is behind the pushing of every single piece of content you see. There is no AGI, and therefore machine-learning-driven algorithms are trained on data that comes from humans.