We have had several members suggest a way to filter the message board posts by date, so they can visit the message boards and only view the new posts on a given date.
We have just added a new feature to the main community/message board page that filters the message posts by date. You can now click on any date in the visual timeline and it will show only the posts that were created on that specific. The timeline goes back 3 months from the current date. Enjoy!