Just wanted to drop a quick note for any new user confused as to why posts might not be appearing immediately.
This forum runs on the Discourse forum platform and out of the box has both some anti-spam and anti-abuse features built in. One of these systems is the Trust Level system, which is explained by their development team here. As you use the forums, you’ll automatically earn Trust Levels and varying levels of control.
A brand new user with 0 trust in these forums may have posts enter a moderation queue and require approval for their posts to appear. This includes situations where the post is too short, contains links, or mentions other users. Rest assured, your post did make it into the forums, it just may take a bit to appear!