You miss the point. A 50 cent army is feasible when you are paying third world wages. If Chinese wage increases price them out of the market, then you can just hire people from somewhere else. But it's the low wages that make such an attack possible. Low wages vs high wages don't matter much when you are spending $200/hr per soldier on Reddit account fees.
If China wants to launch a state-level attack on Reddit they are probably better off pressuring Tencent to pressure Reddit to just do what they want.
I don't think it's a good guess,
nevertheless, for 10 000 people, it's nothing, it's coffee money for the CCP.
Interesting anyway to have heard your thoughts. Have a nice day (probably won't reply any more)