Originally Posted by
Valaut
I don't think that the term 'Mary Sue' means 'the background you allow others to see'. It's reflects more creating a godlike being, perfect from top to toes character without flaws. In other words, a boring character that only kids (or really bad writers) come up with.
Here is an example of a Mary Sue character:
Dante is 20 years old. He is the most powerful and gifted prodigy of his clan. His intellect is unmatched just as much as his colossal strength. He also has an affinity for magic and all of its elements. He is smart, cunning and the serious type who gets all the ladies. Did I mention ladies? Oh yeah, cause everywhere he goes, a harem is following him. Everyone loves him, and he loves everyone, he ALWAYS makes the right decisions and you can always rely on him. He will NEVER let you down. He has also fought countless armies on his own, seized castles, defended against sieges, and fought against 3 dragons all by his own.
That's a Mary Sue I'd say. Some ppl go even further than that.