Holding F3+C during 10 second crash the game and show players coordinates

I'm here to share with you a bug, who annoy me pretty much as a pvp-faction player. This bug is able, when you press the buttons F3+C during 10 seconds then release both button, to crash your game and show the coordinates where players teleported last time.
It also work in solo so I'm 95% sure that that's not a plugin bug.
Please Mojang, tell me you know this bug exist and that you're trying to fix it, because only a few amount of players use this (cheat) bug but when they do, it wrecks pvp-faction servers...