The sites are held by the laws of the country they are hosted in. Users are under the law of there homeland mostly. The homeland of the site and the person they are contacting could also press charges but that's unlikely in many cases.

It must be 18 and above, but then some countries may have higher age of consent. So, if someone is charged for violating the laws, they should be procecuted based on the law of their own land. I'm not aware of any international agreement on this, but the moral obligation on these matters should be 18+.

I don't think so.

I generally assume anyone claiming to be female on SW is a 20 something basement dwelling neckbearded troll who gets their jollies from "trolling" all the guys here

You can't fuck over the Internet so there ain't no age of consent. Solved it.

Unsure its technically international, countries governments can filter what's available through isps

18 is safest bet.

No there isn't. It would be extremely difficult to decide up and then enforce really. Best just to make sure everyone is 18+, lol

i am pretty sure it just gets younger and younger by country