RT@AirMovingDevice@twitter.com

https://twitter.com/airmovingdevice/status/1597034969293271040?s=46&t=fH0HzXND7uK9523p6ISMcw

Thread: Search for Beijing/Shanghai/other cities in Chinese on Twitter and you'll mostly see ads for escorts/porn/gambling, drowning out legitimate search results.
Data analysis in this thread suggests that there has been a *significant* uptick in these spam tweets.