Welcome fellow AAL posters.
Yahoo message board could disappear any day, so this would be a great place to post instead. As far as posting, this board's format is far superior. All messages are kept in order (like they once were on Yahoo) and can be referenced, even after a long time (DNDN board for example has nearly 500,000 numbered messages starting at 1), messages in reference to a specific topic are clustered together so that discussion on a topic are easy, and, there is even the ability to private message (PM) another poster if you don't want to share your idea with everyone, want to ask a question privately, etc.