However, when GFW feels this community or bitcoin is a thread to them, they could block all bitcoin related websites nevertheless.
What you are doing will make GFW feels this community or bitcoin is a threat to them
Because it is. Sorry. Fact of life, oppressive governments don't like freedom. Especially economic freedom.
I make this appeal to WikiLeaks not to try to use Bitcoin. Bitcoin is a small beta community in its infancy. You would not stand to get more than pocket change, and the heat you would bring would likely destroy us at this stage.
That's two years ago. We're well past that stage now. Satoshi would no doubt rejoice at seeing that Wikileaks now accepts Bitcoin, and is thumbing their nose at the CC companies and governments alike.