User blog comment:Kuzlalala/Is Your Character a Mary Sue or Marty Stu?/@comment-3473686-20111002131453/@comment-3479827-20111002163604

We tend to be too nice to ourselves when creating these "self-insertion" characters because we tend to rationalize ourselves in a positive light.

Therefore, I do the world a service when I tell people how terrible they are :D

But in seriousness, people need to be honest with themselves and genuinely consider this when making SI Characters: How would these characters genuinely view me?

[I would be a frequent pest]