Are Didis' regulatory issues making it more difficult for Chinese startups in the US to go public?Didi, a Chinese ride-hailing company, saw its shares fall 22% after it was subject to more regulatory scrutiny over the holiday weekend. Since its IPO last week, the shares of Didi were trading as high as $18.01 per stock. Today, Didi shares are only $12.09, down around a third of their 52-week peak.The Exchange examines markets, startups, and money.It's available every morning at Extra Crunch. You can also subscribe to The Exchange newsletter every Saturday.This decline in value is due to Didi's inability to accept new users following a review by a Chinese cybersecurity agent. The decision was made last week.Didi was subject to more regulatory action over the weekend. The Cyberspace Administration of China stated via an internet translation that the Didi Travel App had been found to violate laws and regulations regarding the collection and use of personal information. This prompted the agency to order app stores to delete the Didi Travel App and to require the company to follow all legal requirements.Didi was yanked out of the relevant app stores enough to notify investors that its mobile application had the problem collecting personal data in violation of applicable PRC laws.I think it is an understatement of the year.There is more to Didi's story than she can bear. CNBC reported that: