Change vBulletin Read Marking Type to "Database (automatic forum marking)"
Change vBulletin Thread Read Marking Type to "Database (automatic forum marking)" instead of the current cookie-based method
Suggestion
Change vBulletin Thread Read Marking Type to "Database (automatic forum marking)" instead of "Inactivity/Cookie Based", which is the current choice.
Why it'd improve the forum
The current setting stores when you've read different threads and bug reports in the issue tracker using separate session cookies. Due to limitations, it's possible to miss posts made while you're writing some if you don't check for new replies shortly afterwards, and sometimes threads you've already read will show up as having new posts. Storing this in the database would do away with these problems, at the cost of requiring a slightly higher amount of space in the server (which I don't think is a problem for a relatively small forum like this one in 2013 :)) and manually marking the forums as read if too many unread entries pile up.
Notes
N/A