Linus may be known for his usage of four-letter words, but the code of conduct isn't (primarily) about profanity. It's about sexism and harassment, and I haven't known Linus to participate in or condone either.
(Another tangential point about Linus and language: he is very good at targeting his profanity. He doesn't drop f-bombs every third sentence, he saves them for when they are most effective. I don't think "knuckle-dragging troglodyte" quite applies.)