So I typed my above response to HK using my phone.
My phone has the app SwiftKey, an app for a phone's keyboard that speeds up typing. It suggests words as you type. It updates from time to time.
I never spell out Battlefield, usually with my phone. I usually just say BF4 or BF3.
So when I typed up the word Battlefield in my response to HK, the word f***ing kept coming up immediately after as a suggestion. The app obviously thought this word was the main word that followed the word Battlefield.
I don't think it is using my history to suggest that, because we can't use words like that here at AVS. I honestly think it must be a popular combination in the SwiftKey database.