As far as I know the idea was to keep forum and in-game RP relatively PG-13. That's why we had swear filter for a long time and I honestly regret that it was ever disabled. Stuff like RPing actual "dark" slavery got a pretty significant backlash from the admins at some point.
There was some harder stuff of course but it was usually relegated to skype RP.
Age restrictions are so hard to bypass. The forum should be locked behind a button that asks you if you are 18 or older. Everyone knows people under 18 can't click that button.