See my answer to your other similar question. :)
If a website owner is in one country but is not monitoring the site and things that are illegal in another country are being posted who is responsible?
No one actually!
A website is an independent objective. Just like here, this website has owner and mods which control the rules based on what's been agreed and what's inappropriate from both sides (what's inappropriate commonly in most societies and in eyes of humanity and moral, and parameters of western culture) ( the region of the website).
And anyone that their belief or legalized parameters are been violated they shouldn't be part of the website, it's not modes responsibility to monitor everyone's culture, a website stand for it's own region and anyone who can't stand it, they must stay away.
No one's really at fault. :D