I do not agree to this suggestion because:

1) This is just a change to forum rules and thus there is no need to create  a separate section for it. We may see further changes if the merit system fails to combat the spam completely. Should we create a separate section for all those changes in future ?

2) With time members will get used to the merit system and thus these posts and threads will disappear. Then that section will become useless or look weird without any activity.

But one suggestion that you gave regarding pinning the official thread is correct. It can however be done here itself.