Emmanuele Contini/NurPhoto via Getty Images
- The stabbing of a Japanese mother and her son went viral in China after a local woman died protecting them.
- Her death ignited a clash between praise for the 55-year-old and a resurgence in anti-Japan posts.
- Tech giants finally intervened in a rare rebuke, deciding that the nationalism had gone too far.
It's no secret that people on Chinese social media dislike Japan.