Not sure what is being suggested here by solcroft.
That avast should not block websites with any hints of cracks or serials on them
or that avast should have a different policy for China (and undefined others) relative to websites in say Europe, Australasia or the Americas?
Preferably the former. If not, the latter would have to suffice.
I can only speak for myself but I think I understand solcroft's point.
(I'm not really happy with this analogy but it's the best I've come up with in a hurry.)
If you were to live in a 24-hour disco, and didn't want to lose your hearing:
a/. you could install a device that would physically remove you from the building every time the possibility of a dangerous noise level was detected, or
b/. you could wear earplugs to stop the damage to your ears.
While I personally like the way avast! Web Shield aims to stop malware from a website getting anywhere near my PCs, many security programs aimed at the Chinese market have traditionally concentrated more on stopping malware (particularly trojans) at the point of activation rather than the point of entry, because they recognize that for Chinese users, the web, like the disco, is a pervasively "noisy" place.
Disconnecting you from every potential source of infection is a fine idea, but if it were to effectively stop you going anywhere on the web....
Dealing with the actual infection when/if it happens is inherently more risky, but at least you can still browse.