You know, I'm nearly certain that that post does violate some "international law or regulation".
Do I know which one? Nope, not a clue. But many countries have pretty weak free speech protections, and pretty strict drug laws. The idea that that violates none of them seems quite unlikely.
The fact that your local laws have strong free speech protections doesn't really matter when the criteria is "local or international". If it violates north korea's, china's, or singapores laws it still violates that restriction.
Maybe the policy should be rewritten then. If no content is allowed that violates any country's free speech restriction, then it probably means the site will remove criticism of the government of North Korea.
Do I know which one? Nope, not a clue. But many countries have pretty weak free speech protections, and pretty strict drug laws. The idea that that violates none of them seems quite unlikely.
The fact that your local laws have strong free speech protections doesn't really matter when the criteria is "local or international". If it violates north korea's, china's, or singapores laws it still violates that restriction.