Maybe people could rate their blog or post a clear warning when it has vulgarity in it. (Like in the subject line say "WARNING...."). That way those of us who don't want to see certain things, or hear certain things, won't have to. I'm not asking you not to post it, I'm just asking you to warn us. It's hard to avoid something if you don't know it's there until it's too late - so please don't say, "well, nobody's making you read it." It's done at that point.
Just a thought.