chrisv1963 - 9:35 am on Aug 2, 2011 (gmt 0)
I've had a few Vietnamese visitors recently too
but they seem to have a nice time reading my site content anyway so I guess that's good
I had some visitors form Vietnam too a few months ago and they copied a huge amount of pages from my website. Also, they were so friendly to make all my content available on their website in several languages, translated with machine translation.
My visitors from China are extremely interested in my content too and seem to love it in combination with "copy & paste".
I prefer not to have vistors from these countries and am actually looking into the possibilities of blocking them.