Originally Posted by tomasp3n
" “Social” is a four-letter word with extra letters. "

What does he mean by that? Am I being stupid who don't get it?

I'm guessing it's a language thing. The "best" swear words in English have four letters (fuck, shit etc etc). So, he's saying hardcore gamers react to "social" as if it were a swear word…only it has more letters.