On the home page, there's a link that says "forums checker." You click it and it lists certain posts. Not sure why it shows those particular posts...very confusing!
There is something called Settings. Click that and you can tweek this tool as per your wish. This is a tool that displays what is going on in this forum based on your setting. For Eg: If you need to know what is going on in 3 categories like chat, seo, general marketing, you can subscribe and when you click forum checker link the next time, you will see respective results. Hope this helps.