I have heard many men call female characters a Mary Sue. The only time I’ve ever heard anyone call someone a Gary Stu is in a sad desperate attempt to defend their use of Mary Sue.

You want to argue that Rey does not earn her abilities? I disagree with you, but feel free to make the argument.

You want to do it in a derogatory way? Congratulations.

Also, rating TFA a -1/10 has always been and will continue to be nothing more than a troll move to illicit negative reactions. So again, congratulations.