I don't understand what you're trying to say (you're off topic?!)
Being buying/selling on Ebay for 17 years with thousands of feedback without a negative feedback on two accounts, I surely understand how that works.
"大陸的網站,有一些認證機制,會有一些審查。" 美國沒有(based on freedom of speech, but you can always go to court if you think you've been offended),所以美國應向大陸學習?
與老美同事聊到這點他們對小弟說 "Don't waste your time on such topic!" - that's exactly what I will do.