Yes, for situations such as these I find very helpful the iPhone's configurable shortcuts where, for example in this case, you can write "gtg" and it'll autocorrect that to "I have to go." or however you want to say it.
I've read several posts from admins saying that people who were Hellen Kellered at the time of the new forum's launch were having an issue because of which their state would not change with time. I didn't worry at the time it happened to me because I knew it would go away, but, well, it seems it isn't. Am I correct on that?