My interesting take on this is to remember how Chinese gamers use “review bombing” (it’s not really that what’s happening) because it is the only feedback channel available to them. Due to internet censorship laws in China, they can’t get access to typical discussions, community features, forums, discord or whatever the devs are using to gather feedback. So their only resource is to leave or change a review on the steam store. Since there are just so many chinese gamers, this looks like review bombing but it’s not the intended effect, they are just using the only interaction method they have. Furthermore, both Valve and developers know this, but won’t do anything because they don’t know how to tackle the issue other than just waiting for the scores to average out.