I, too, am one who likes to hear English spoken correctly, although from an American standpoint. One of my pet peeves was hearing the speaker say, "Turn to Psalms 83:18" instead of Psalm 83:18. And yes using "of" instead of "have".
For the first several years of our marriage I would constantly correct my husband's grammar and pronounciation. When he became an elder I thought he would appreciate learning how to speak better on stage. Unfortunately all that happened was that he just became more irritated with me. I gradually learned to let it slide most of the time. Well about four years ago he was diagnosed with ADD (he's the poster who goes by the name of TotallyADD) and he feels he has mild dyslexia. So now I've learned to be more understanding and try to listen more for what he is really saying and not so much as how he is saying it. Being raised by Witness parents who themselves did not speak English well and having no motivation to do well in school because the world was going to be destroyed anyway gave him little motivation to apply himself to learning how to speak and write correctly. So now I am just grateful that I have a good man by my side who has come to see the cult of Watchtower for what it really is and we are leaving together and making a new life for ourselves.
Reopened Mind