It is Didi's responsibility to police their platform. If the offending drivers had already been reported multiple times and Didi had not taken action, it clearly indicates passenger safety was not high on their list of concerns.

If you are a predator, bring a driver affords you all kinds of opportunities to prey you people that you otherwise would not have. How often are you going to find a young woman walking in a dark park by herself late at night? Compare that to how easy it is to pick one up as an Didi/Uber driver.

At the end of the day, a ride sharing company's users literally entrust their lives to the company. It is the responsibility of the company to act on a way worthy of that trust. If they don't, it is definitely a reasonable response to #deleteDidi.