Containers, chests that disappear after being looted, loot on mobs, resource nodes, etc. Are they instanced to you, or can other people steal the loot out from under your nose if you're not fast enough? I was looting crates when I noticed someone running to each crate and urn just after I'd looted it. I wasn't sure if I was yoinking all his stuff, since he'd just closed an anchor. I don't want to be that guy, but I just don't know how it all works.