The mechanics of it all

So, how does it all work? This blogging thing. Do I come up with cute nicknames for everyone, a la Auntie Di? How do I do things with Blogger? Who reads these? On Facebook, I censor my posts to avoid corrupting my young cousins. Do I do that here? If so, how? If, say, I want to post something we came up with during Game Night, it would probably be profane and on a questionable subject. It would still be interesting, though. What about things that are just plain gross? Seriously, I need some guidance on blogging etiquette.