[McAtNite]

Please note I never used a nationality in my comment, but referred to the countries themselves. Nothing I stated had any emotions behind it. I stated simple facts from personal experience.

Geolocating the origination points of an exploit is extremely useful. Your point of other countries using proxies being the prime reason. The simple fact is if China and Russia wanted to limit the number of attacks originating from their IP blocks they could do so. Since they more or less allow it to continue they are a common source of malicious traffic, and geo blocking will significantly reduce the number of attempted exploits you experience.