Hey michong, I never realised there was this thread until the last spammer's visit. This is much easier as anyone can see it. Anyway, this time, we've got three at once. I'm not sure if you can ban them as they're appearing as guests in the Feedback section.
Username of spammer: blocker Quote of suspicious post(s): Ok, everything was in a foreign language but Google translate had something like "For Sale: Cutting 1.avtomatizirovanny complex Sochi-5 carbide cutting chains. etc etc" Link to thread(s) with spam: http://jingcastle.forumotion.net/t1516-5