It is a small thing but I think it is a good idea to hold w or up while walking to use the stairs instead of forcing the character to automatically go up the stairs. I find it a bit annoying as you wander around your newly made house/spaceship to only find your character going up the stairs when you don't want it to.
Agreed, I find this especially annoying when navigating certain areas as well, and currently the only way to circumvent the issue (dropping down the moment you raise onto the platform) is a hassle.