An interesting opinion
I just browsed through the website,finding a sentence which I really agreed with.
I tried to translate it to English in my own words.
"A large number of people [many people] refuse to talk because of being dissocial.Instead,they just have their principled views on choosing friends.They can be talkative to those they like while [being] silent to those they dislike(hope I use "while" in a right way this time." [It might work without the word "being." There's no need for that word in the following sentence: "While silent to those they dislike, they can be talkative to those they do like.]
When someone is uncommunicative in some places,for example, at a get-together,I find so many people would tend to feel that one is isolated or introverted.
Of course we cannot make a conclusion so fast [jump to a conclusion]. If he or she feels right,we should harbor our respect for them.