1. How have WeChat and other Chinese social media platforms been implementing censorship?
2. What's the difference between a bot that only "reads" tweets (never posts) and a user that only reads tweets? How would you cluster such behaviour (especially when each user/bot is tuned to "read" different content from another member in the cluster)?
3. For as long as a platform enforces policy requests to censor it really doesn't matter what tool is used to determine what to censor. The enforcement will and does get abused time and time again. On your point of the AI being an effective tool for the #twitterfiles, the thing that was surely more effective then AI is the decree that only "trusted" sources should speak/amplified on a topic. Once this decree is put out the AI is just sprinkled on top of the enforcement so that when the censorship gets called out the ones who wrote/enforced the policy can say "the AI did it".