Odds and ends (questions)
Where are my gem sales? I want gem sales! Nerf EVERYTHING!
1. The trading post is global. It is shared across all 51 worlds.
2. Yes … you can walk out of the range of many attacks. Monsters can’t seem to attack on the move. You can usually strafe around them faster than they can turn as well.
3. No
Khisanth covered it, just for 3 a small remark. The dungeon poi’s and wp’s are not needed for world completion, but there are two instances that are required.
a: Chantry of secrets (open for everyone, just go in and grab it)
b: Claw island (you get these when you start the first personal story there at level 50)
Arise, ye farmers of all nations
Arise, opressed of Tyria!
Arise, opressed of Tyria!
Thank you. 
Where are my gem sales? I want gem sales! Nerf EVERYTHING!