The Cursed Shores are named for the influence of the Rain Wilds and the Rain Wild River, which were infamous for their danger and inability to be settled. Bingtown was the first successful settlement on the Cursed Shores.
The coastline of the Cursed Shores was radically altered by the cataclysm. Serpents observe that many cities they can recall are now underwater. Before the cataclysm the current coastline was at higher elevation, and the coast extended farther into the ocean. It is implied that the Pirate Isles was a mountain range before the cataclysm.