With the latest site update, the 'unanswered messages' button is now hidden. It's on a drop down menu next to the big 'Talk' at the top of the page.
I just feel a bit sad that sometimes people are reaching out to others but their message goes unanswered. Okay, sometimes it's trivial stuff, but not always, and even if it is, there's something really dispiriting about being ignored. Yes, they could post in one of the busier sections of the board, but people often try to put things in the 'right' section.
So, go on, take a look. See if you can help an internet stranger asking for help or advice today.