There should be a force to be reckoned with, other than the shark. maybe weather, the occasional storm, to make expanding a much bigger pain. a new way to play the game, is to add a new day/night cycle, ingame minutes seconds, ingame hours minutes. when u create a new map, you specify how many days you have to survive, weather, shark(or maybe even multiple sharks :))(s), day/night cycle, food, water, resources needed (multiplied), resource chance, barrel luck, lives(1 life+, or infinate), and much more possibilities. as well as that, maybe presets, like realistic, wage against the sharks, hardcore, creative, easy; the possibilities are endless! this comment was mostly all me thinking out loud, so it may seem all over the place.
also, there should be floating items, and the higher you make your raft, the lower the bottom platform sinks. floaters can be added to fix this, crafted with rope, wood, thatch AND scrap; the whole lot. also, bits of your raft can fall off if unstable, for example, floaters on the edge of your raft, with an upstairs in the middle. the middle would end up colapsing, because its not supported.
i hope 1 or more of these ideas make it into the game, even the WIP progress just to try them out. im no good at coding, so i don't know if any of these things are too hard. among the endless "SEA" of comments, theres quite a low chance that this is the one that is at the top when the devs come and check. like this if you agree- assuming this works like youtube comments. i don't even know if you can like, i just made this account SO i can comment!
:D