THe new board design shows a line of teasers (with the post titles) on the bottom of the board page now, and it seems like they are a mix of new posts and very old ones mixed in randomly...and if you aren't watching carefully, it would be really easy to click on an interesting sounding post title and not realize that it's an old one rather than a more recent one. Kind of like how some of the news websites have a bunch of click bait links at the bottom that are hard to detect.