As I understand, Forum Suggestions are in a single thread. That's why I was confused. Since I saw the hint for Suggestion Forum in a signature I didn't know anything more about it.
Only from your reply did I realise that games in development have their own Suggestion Forums and not the General Discussion. CK3 Suggestion Forum is hidden behind AARs but it's there. So no problem.
Anyway. Thanks for clearing that up. I'm not confused any longer.