I agree with Dixie; lying and deception is damaging to anyone and everyone. Though in the case of a sub lying to their Dom/me, I believe it's far more self-abusive than abusive to the Dom/me, or perhaps more abusive to the actual relationship.
The way I see it, when you lie to your partner about yourself, your thoughts, or your beliefs, you are creating a false image of yourself in their mind. In a bdsm relationship, not knowing the true version of your partner can be very dangerous, especially if the Dom/me doesn't truly know their sub. Maybe this is reading into it a little too far, but thats how I see it.