I've given my approximate location and both my and my wife's first names in my username and signatures. I'm not concerned about safety and anyone that would have a problem with my choice isn't computer savvy enough to find me here. There aren't really many options for additional info beyond that but I would gladly talk and share more personal stuff through messages, provided of course you're not asking me for my address in the first contact.
I'm carefree, not dumb. Haha.