Sorry to break up the chat between srb and Demongod, but I have something that may interest some of the fanfiction writers.
My friend from Gaia Online named NamaeX, another forum-like place where you can create your own avatar with a dress-up style interaction, told me to read this thread.
Basically, this is a thread about judging whether your character is a Mary-Sue/Gary-Stu or not. It's quite interesting and educational to the people who really wants to be a professional writer.
Here it is.
Who Is Mary Sue and Why the Heck Should You Care?
According to Myracuulous, the thread starter for this informative thread, one of the Author Created Characters is slightly a Gary-Stu and the my giving level of OOC of my fanfiction for some of the characters are turning them into Gary-Stu and Mary-Sue.
For all the fan fiction writers whose story involves your own ACC(s), please read this. I've read it and I'm going to change things...oy...