Exactly as @L_amp_M25 says, the title badge you present to the forum is your own choosing. I can see you have indeed automatically upgraded to Regular, you just need to set what title you use.
Ducking Amazing! (which I use) is simply gained by winning a game of Hook-a-Duck! so open to any forum level.
In terms of what Regular status allows, this topic by Brenna, Trust Levels tells you exactly what every forum level permits and how you got to the level. Just click the drop down menus in the first post