I think it would be a great idea to see an elevator for all ship types. Everone stores their gunpowder barrels in the crows nest, so why not add something that you can put one of any item in (Gunpowder, Chest, Skull, Chicken Coop, Etc.) and lift from another rope with a pulley, it would get to the top twice as fast as climbing the ladder, when it gets to the top it would teleport to a singular stack at the top. The Pirate would then let go of the rope and it would fall back down to fill up again.
With this, Rare could also make a pirate not able to drop an item from the crows nest a pirate would need a crewmate to go up there and load the item and the pirate operating the pulley could drop it and bring it back down. In order to avoid issues, on the sloop and brigantine, there would also be the option to move the rope from the top and bottom. If a pirate was to bring up the rope to the top empty, it would be four times as fast as climbing a ladder.
Another Idea is when bringing a gunpowder barrel down, it would explode if you dropped the rope and let it fall. this would have more balance for people wanting to get multiple barrels out really fast and give another ship time to react.
A pirate at the top of the crows nest could also have the ability to ride the rope down and would be faster than climbing down the ladder and less dangerous than jumping off.
Something else that could be implemented is instead of blocking pirates completely from dropping things out of the crows nest, the gunpowder barrels would explode, and all other items would have a chance to bust a hole in the ship based on the "weight" Rare would give it.
TL;DR
- Add an elevator (rope pulley) to bring items up and down from crows nest
- If a pirate is not careful, things might explode or bust a hole in the ship
- The ability to ride the rope down if a pirate is up there.
EDIT: This is just a quality of life addition and is not an important core feature.
EDIT 2: Clarification that it is a ROPE elevator.

