I'm curious whether China will try more subtle tactics in the future - and I'm wondering if the extradition bill may have initially considered subtle at the time, given that it was introduced shortly after the Taiwan Extradition Bill.
It's being reported that China has begun to use Social Media to influence perceptions abroad, and there isn't any reason why they can't/aren't using it in Hong Kong. Using Social Media manipulation obfuscates the actions of China - it's difficult to point your finger at an online activity and clearly prove that it's an action by China.
Doing a quick search, it appears that the majority (75%) of Hong Kong citizens use Western social media platforms (FB, Whats App, etc). Whereas only 45% use Chinese platforms. A tactic China can use is using incentives to migrate HK onto Chinese platforms. Western Platforms remove activity from state actors. Chinese Platforms will not. In addition, they can use AI/ML to influence HK to be pro-China