Yes, they do criticize China when they "blatantly props up the market" as ZH would say, but only because it would stink too hard to not say anything when the credo of ZH is that "governments manipulate markets and thats a bad thing".

But if you read the articles, you'll see that ZH has a very favorable opinion of China, especially when it provokes the US, like the current situation in the Spratly islands

However Russia, I never ever saw a bad article about them, or especially about Vlad, which is the current ZH hero.