All of my posts these days are friends-locked because they contain references to "fun" and "exciting" real-life things. I don't friend back automatically, because I don't usually filter posts, but I do read from lj's notifications and my own bookmarks. LJ-admin required warning for minors: unlocked posts may contain swearing and sex and other naughty, naughty things.
For the purpose of joining comms: I'm over 18 years old.