And even then, there's the problem of "what do you want your family to see?"
I know a number of people who're completely open about stuff to their friends, but very carefully maintain a cis+hetero front to their family in order to avoid a complete disaster.
(psueodynoms aren't a fully sufficient solution there of course, but they definitely help quite a lot)
I think it's worth noting that in that regard, Google Plus, with its 'circles' grouping mechanism, is very good at respecting one's privacy to whatever degree that they wish and are willing to put forth the effort to implement.
Yegge infamously posted a rant publicly on G+ without intending to. I don't think I'd bet my life on circles, especially after watching how Facebook put in similar features and then capriciously violated the intent of many users.
I know a number of people who're completely open about stuff to their friends, but very carefully maintain a cis+hetero front to their family in order to avoid a complete disaster.
(psueodynoms aren't a fully sufficient solution there of course, but they definitely help quite a lot)