Believe me, if I had a penny for every time I failed to find something in a search and someone else came up with the link I'd, well, it doesn't matter how much money I'd have - I can't spend it here anyway! I'm awful at using the search feature. It's easier if you know the thread exists.
I thought of another tradition - my FiL, two months after the wedding, keeps commenting that during the reception the Best Man didn't read out the cards from guests who couldn't make it. Personally, I think that would've been excruciating for everyone, but if there's one or two special people who want to write something it could be sweet.