Actually, this situation is pretty much just capitalism at work. It really has nothing to do with communism; every free market is susceptible to this sort of failure.
This current rout is simply a continuation of the previous one in July when similar curbs were placed to halt the plunge.
Once again, even if their tactics work they'll only help bring about yet another plunge.
All in all, the western demand is dying out since most countries are trying to in-source materials and goods (instead of importing from China) and domestic asset bubble has nowhere to pop and the lies invested in that bubble have nowhere to hide.
Oh, is that specific to China?
Thank god that US companies will never betray their nation's core values by shelling out to non-free countries in order to save production costs and circumvent labor laws.