@chocolate Thank you for explaining, it seems I was quite far from the right interpretation. Concerning, avatars I don't know why but actually quite a lot of people have a different color (it has been applied automatically) and for the nickname it was not intentional either (why my account name from korean.se has been used? I don't know) Anyways, thank you again for your help

@ishikun You can as well bring the answer into the chat (by giving its link) and ask every one their opinion.