This one is quite common, and usually takes place over global channels like trade chat.
Inevitably, some new player is going to have the audacity to actually expect to receive some kind of advice by asking the game’s general populace. This person may be having a technical issue of some kind, or simply be attempting to figure out which button combination to press for a particular feature.
It’s possible that someone may actually attempt to deliver a helpful response to the newb’s query, but it’s equally possible that someone will respond with a message telling them that their problem can be solved by pressing Alt+F4.
As most Windows-savvy computer users know, Alt+F4 is the command to close the current program. So, should the hapless newbie actually attempt the provided solution, they’ll find themselves staring at the desktop and wondering what the heck just happened.
This is one of the simplest and most common pranks in almost any online game. Don’t fall for it.