I've stopped and started the games numerous times but this is my first serious play through. I've only ever had one seamoth and every time I name it:
TUNA 1
Its funny you mention "Wilson" from Cast Away Dbond. I remember a couple of years ago or so back when around the game came to Early Access, in the suggestion area of the forums, and this was before the game was really fleshed out, I had suggested that the developers create some sort of talking robot, something akin to Wilson from Cast Away to keep the player from getting lonely and to give them some company.
I remember seeing a game update where you're supposed to be able to acquire a pet but I'm not sure how to go about doing that unless its related to the story which I haven't been exposed to much yet.