My family doesn't exactly know what I do online. Neither do my relatives. My friends do know what I do online and some know that I have an account there. But being a high school teacher and having all sort of students, the nerdy ones, the weebs and such will probably know that I have an account outside Instagram/Facebook and such. I'm not ashamed, mainly because I act basically the same in all my environments.
do they know my console hacking activity you mean?, yes do they know it' against the law to circumvent security measures according to the DMCA, Maybe? but i live on my own and when I'm at my parents house I mind not to pirate on their net
I'm ashamed of nothing I've ever done in my life, including stripping on tables in the pub - only because it was safer than getting my clothes ripped off by my female colleagues.... more than once (one or two things I'm really not proud of though).
As for GBAtemp? My wife knows I have an account here, and if I post anything particularly risqué, I tell her. Just as I do when I make, lets say unpopular, or completely fucking off the wall on Twitter