A Minecraft client forced crash using F3+C give all players coordinates on a server.

A Minecraft client forced crash, generated when a player use the F3+C command, generate a log visible in the Minecraft Launcher that give all players positions on the server (Players currently connected). Players use those crash logs to easily find others players coordinates/bases and grief/raid/kill them on Hardcore servers.

This Exploit is more and more known in Hacker circles and need to be patched asap.

Also why there is no "Exploit" Category in the "Issue Type" drop down of this report form?