I did not say I was a professional. I am the parent of a deaf child, a certified interpreter in SEE and ASL, trained in Visual phonics, have studied linguistics and language acquisition in deaf children and work in education and with early intervention of deaf children. I have spent 8 years learning about deafness, language, etc.
No I am not a professional in language development per say, but I have spent considerable time learning and I have seen and been involved with many different situations and families. Which is why I said my 'opinon'.