The "categories" page (@ https://forums.collectors.com/categories) normally displays the most recent post in each category. It does not seem to be 'working' correctly for all of the categories.
The "categories" page currently indicates that the most recent post in the 'PCGS Set Registry Forum' is from 9/8/22.
This is NOT accurate. The most recent post is from today, 10/1/22.
Edited to Add: @HeatherBoyd