You cannot delete your post or add pictures in a post. You can lock your own thread, however, and it archives afterwards.
To display your town, you need to create a character and town. First, click on “My Characters” on the left sidebar under My ACC. Second, proceed to make your character. Then, click on “My Town” and create a town for your character. You need to make sure it is your default character for it to show up under your profile picture.
If I had my own world
I’d build you an empire
from here to the farlands
to spread love like violence