问题
Based on this https://developers.facebook.com/docs/reference/plugins/comments/ people can post using other third party services, but can users post anonymously on a web-site using FB comment system?
回答1:
AFAIK, it is impossible to post anonymously using Facebook's comment system. Whatever the website, your comment will be associated to your facebook profile, if you are commenting using the facebook log in.
来源：https://stackoverflow.com/questions/10463718/anonymous-posting-facebook-comments