I'm sorry, I'm not cool like the MLGers. I honestly do think that most MLG gamers aren't jerks in real life, but on Xbox Live they're competitive douches. So many times I play Halo and end up getting a message from a guy who went like 1 kill better than me and is like "Wow you suck!" It gets annoying after the 100th time. Just stop arguing. Let the MLG players have their Super AWESOME Halo 3 while CoD 4 appeals to the MLG and Casual community. I personally think that gaming for a living would be pretty cool, but I'd be a loser in almost everon elses eyes.
Before you make fun of people for arguing over the internet, remember, we're all on the video game message boards.
Actually it derives from the Latin word leota which meant "winner" or "conqueror". It can directly be seen in another English word "leotard" which is what gymnists wear, obviously trying to be the "winners". Leet was changed into the numbers by nerds who thought it looked "cool"