It depends on a number of factors, but mostly it comes down to how you configure it. The results should only cache for about an hour.Thread from today 20:52 - 16 views + 0 replies - ON the list.
Thread from yesterday 18:02 - 447 views + 26 replies - NOT on the list.
Thread from yesterday 12:03 - 694 views + 47 replies - NOT on the list.
Thread from Monday 10:00 - 2k views + 119 replies - NOT on the list.
How does the add-on calculate replies+views per miniute?
Can you invite me to the PM with @Stuart Wright and I can see if your configuration is hitting a bug or something.