I might view my Glitch character as an inanimate object that I manipulate for entertainment. Alternatively, I might view my Glitch character as a symbolic representation of myself. Then again, I might view my Glitch character as a creative work or performance. Or, I might view my Glitch character as a mix of these. There are psychologically valid reasons for each form of game play, and none is "right" or "wrong." They are simply different.
If I see my Glitch character as an inanimate, manipulative object, should I expect you to understand it is "not me" in the same way you would understand that a toy dinosaur I might pick up and fool around with is not me? In fact, I don't expect that because I realize that a Glitch avatar is different from a toy dinosaur. There's no clear boundary as there is between the hand and the toy dinosaur. A Glitch character is malleable and allows a wide range of action and expression. The creators of Glitch may have expected most players to view their characters as a creative performance. However, by its design, Glitch invites people to go beyond that and to treat their character as a symbolic representation of self -- and there is nothing abnormal or even very unusual about that. Humans, by nature, create and become invested in symbols. Consider how people react when the symbol of a nation or a religion is treated in a disrespectful way.
When you interact with a Glitch character within the game, in most cases you don't know the person behind that character. You cannot assume that they know, understand, or believe the same things as you. You don't know their background or their culture. Their native language may be different from yours. They may have a medical condition that impacts their life in a way you've never experienced. They may be recovering from a stroke, or be developmentally delayed, or have atypical brain wiring. They also may be someone very much like you who happens to be playing the game very differently.
So what is my Glitch? Is it a toy that anyone in the sandbox can play with in any way that they wish? Is my Glitch a performance I hope you will enjoy, while understanding I need to make sure my performance doesn't get in your way? Is my Glitch "me" hoping to interact with and get to know "you?" If you don't know me, then you don't know.