Communicating with other hearing people in Sign language when you are not deaf or hoh or there is not a deaf person around is insulting to us. Its equivalent to pretending you are deaf. If you had bother to take up some courses in Sign language you might actually know this. You wouldn't even have any sign languages if it was not for us deaf people, so in that regard you are insulting us there too. You are suggesting that the fact that the deaf created it and are responsible for its evolution is meaningless.