Use: If pressed, it makes every letter that you type into all caps. Some people on the internet use it to emphasize a person's statement.
TOMMY THAT'S NOT NICE! That sentence would universally be translated as yelling, even without the exclamation point at the end.
Perhaps they think it looks cool, or maybe they can't do joined-up writing yet and write in block capitals.
It is the most annoying button in existence.
OMG LYK WHY CANT I UZ SHIFT TO LYK PROPERLY CAPITALIZE MY SENTNCES?!?!? CAPS LOCK IS JUST LYK SOOOOO COOOOL THAT I MUST TYP EVRYTINK I EVR THINK OF WIT IT???!?!
We found an error in your definition.
* Example is written in all caps
2) A skill in which all players of text-based MMORPG's do not seem to be able to turn off until level 3
You: * accidentally presses caps lock key* NO, NOT AT ALL
2) TextBasedNoob777: HELP!1?!? HOW PLAYS THIS GAME!11!!