My siblings have an account but they rarely use it :<
The strangest thing was when my grandma unexpectedly stumbled upon my flashwork a few years back. I believe she googled my name or something and found all my mario flashes. To my near disbelief, she actually found them to be hilarious, which was so weird because I didn't quite anticipate her having such a raunchy sense of humor. So, I guess in an odd twist of events, Newgrounds actually brought me closer to my grandma :D