Nex, NM, Zulrah, Vork, Hespori, GGs, Hydra, ToB, ToA. Deaths at these locations risk wiping your gear.
Run back right away and pick it up of course, but people log out on tilt and forget or forget god gear at Nex chest or forget nosepeg at GGs or don't have Kourend Elite / didn't know at Hydra and they lose hundreds of hours or more of progress, and why? These are just setting people up to quit when they make a mistake.
If anything, send the chest's contents to Death and make them pay the fee. But the wipe chests should go away.