Pretty much all there is to say about it^ Ship lockers should only be accessible by the player who owns the ship. I'm aware players can only come to your ship if they're in your party, but still. It'd be nice, ya know?
Should be only you can do things on your ship, so if you have it all fancy and decorated, people you party with can't destroy the place and rob you blind. Also the game keeps bugging in multiplayer and you can end up beaming onto someone else's ship by glitch
They should have some player-side storages, like Terraria's Safe and Piggy Bank, that persist through everything as long as your character isn't deleted. That would be perfect for Starbound, and they could store Pixels, too!
I prefer the idea of having your ship only being able to be edited by the owner (meaning it and everything in and about it). It solves a lot of issues that have already come up on my small server. However, I do like being able to transport to someone else's ship for a variety of reasons - foremost I get to see what they've done with the place.
i could not agree anymore , i really wish this was put in ASAP , as well *hopefully* a mini locker for you to store pixels