When you sign up you agree to the rules, laws and regulations that this website follows you're registering to. That goes for any website you register to, they should mention clearly what laws of which country/area they follow if it is applicable.
It is mentioned clearly when you register to not do anything that is against International or United States Federal law
It is also mentioned in the rules.
Anything that is considered illegal will be removed based on US federal law or majority state law. Even if something is not illegal in your country the content may still be removed if it is illegal in the US.
Give me a moment and I'll post the screencap here of what you see when you register.
Here's the image:
(https://orig00.deviantart.net/c8ae/f/2017/261/d/6/registrationtff_by_ventus_fall-dbnsjh8.jpg)