It would be great if there was a page in the forum (in the control panel) where users could see the discussions in which they have posted and any new replies to their posts. This is not the same with active topics, which I do not find particularly useful. I got 770,000+ pageviews last month and only 5,000 pageviews in the active_topics.asp page.
By the way, most of the suggestions I am posting come from my visitors.