When you're building a social networking site like this, when do you need to start to worry about laws from different states and countries (eg age bans, data export, etc)?
[0]: in ancient times when server meant an actual server
But, my rule of thumb is you don't really need to worry about laws from places where they don't have real jurisdiction on you. If they filed suit, would you rather respond or make a note to never visit that place / would you be ok if all your users from there were blocked from contacting you by law?