I might not agree with everything he (or anyone else) says, but I am always respectful. He has worked very hard to get where he is today. I don't think it is possible for anyone to have looked at everything. If he overlooked some things or found another reason for what you are posting, he should be given the opportunity to answer.
I always write a post as if I am addressing it to myself. I read, then reread each post to make sure it most likely will not offend anyone.