As someone who deeply enjoys building castles and forts, I wish that players had the ability to craft and place the palisades, log spike walls, and spike traps found outside of various NPC structures that were functional for defense. I understand that issues of making hunting trivial could arise, but using a similar "crushing" mechanic for animals killed by spikes could heavily reduce that. Also making them somewhat expensive to craft/have a durability system could also be a deterrent to mass slaughter of wildlife. At the end of the day though, I would even be happy if they could be crafted at all in survival, even if kept unfunctional. I feel like the addition of defensive combat structures could also be a good incentive for players to invest more resources into their home and its security, beyond just putting lots of lights everywhere with a basic wall/perimeter defense. Having to "man the walls" against an incoming force of monsters alone or with other players could really be taken to the next level with this system.
