Its great that barrel lids are persistent in whatever state they've been left before sever resets (thank you) but now there's currently a sound glitch that persists after server resets on public servers.
I have 2 barrels in a stash located way off any common travel path and while running up to said stash I could hear my barrels being opened and closed (both very distinct sounds). I was convinced someone had found it and was looting away but as I snuck up to them expecting to find a survivor I found nobody in the area and as I stood confused at my barrels (one open, one closed) the sound of them being open and closed kept repeating until I interacted with each of them.
Its looking like it will be a great way to find peoples hidden camps and stashes but over all it will put a serious hurt on players ability to actually hide things until the issue is addressed as the sound can be heard from quite a distance out.