Originally Posted by AKSpartan
This is a life lesson applicable to the real world.
Thing is, Minecraft isn't the real world. In the real world you can't wander into abandoned mines, kill a few spiders and loot some (game-generated) chests with diamonds.
I think most, if not all, people on our server are honorable and nice people - I've not had a problem with any of them so far. That does not mean you don't have to lock your stuff - if only to prevent mistakes from happening.
As I said - I found two chests full of stuff in the stronghold. At that point I had never seen anything like that at all. I initially left the chests as I thought the whole stronghold had to be some other players creation, but after realizing it wasn't, I looted the chests.
This isn't about protecting your stuff from "bad people" - it's about protecting your stuff from honest mistakes/misunderstandings.
And comparing this to stealing stuff from unlocked cars IRL is... well... not very reasonable.
Like DavidC, I also leave my chests unlocked if it contains stuff I don't mind others taking - I really don't see why anyone wouldn't just simply lock chests with stuff the want for themselves. It takes about 5 seconds.