How do you guys decide what actually stays, and what is worth risking leaving outside in a chest? Even with island protection I still worry something might happen lol
Keep your valuables such as grass diamonds or spawners, or other useful items in your echest, the rest you can simply put in a locked chest on your island
If you have it in a locked chest you can be safe, because no one will be able to reach it. I am keeping items worth over 2k diamonds in a chest on my island.
I've never had anything stolen in a regular chest. I've never trusted anyone on my island, so I don't even lock most of them. Except for the important ones I do keep my Diamonds and rares in the Echest.
Items in your echest are part of your player data and not actually part of your island. If your player data glitches or cleares somehow, you lose everything in your echest. It's happened numerous times before; keep any valuable items in locked chests inside a room other people can't access if you want them to be safe.
I keep nothing valuable in my ender chest. All rares and diamonds are stored on my island. Floating around as it happens
I can fit all my valuables in my echest, although I head from a friend that there was a reset or something a while back before I started playing, and all of the valuables he had in his locked chests were stolen
I put my illegals (which are gone now ) and rares in there, the things I can't really get back. Iron/grass/gold/diamonds aren't too hard to achieve so I leave those in a chest.