Lately i've been needing to find a few of my previous threads, which have been inactive for more then 30 days, meaning it won't show up in the threads that i've made. We should be able to see all the threads we've ever created even if they've been inactive for 30+ days.
Another idea which would clean it up a bit is if your thread is older then 30 days you should be able to delete it completely so theres less pointless threads around. (Have alittle x beside it like in 'My Threads')
Just a thought.