I frequently get comments on my fanfic from people who want to tell me that they don’t like that John and Sherlock swear so much in my fic. They like to point out that there isn’t any swearing on the show itself, and so therefore it’s out of character.
I guess they’re forgetting about this:
Along with lots of other clever ways this show and others get around the fact that they can’t accurately represent the colorful language people use in real life on a television show. I always thought JKR did a particularly good job of that with Ron Weasley in the HP books. It’s clear that Ron swears a lot, but you almost never see an actual swear word in print.
So the thing is, I like swearing. Like all grown-up people, I know that different times and places call for different kinds of language use, so lest you think I go around swearing all day long, I don’t. It’s something I enjoy in certain company, with close friends. And so similarly, I like my characters to swear in those kinds of situations. I find it fun and colorful and real, and also Martin Freeman.
If other people find it difficult to believe that an ex-military doctor would say “fuck” a lot, that’s fine. They are absolutely entitled to their opinion. We like what we like, and we don’t have to justify it to anyone. But it does strike me as odd that of all the things characters do in my fics that they don’t actually do in the show, the swearing is the one I get comments about the most. They also don’t have nearly as much sex with each other on the show as I like to write, but people seem so much more willing to suspend their disbelief for that. ;-)