Occasionally, a user will ask a question looking for specific technical advice, i.e. working code implementing a mathematical model and/or principle. This is usually not a problem, but I am curious what the protocol is when the user is from a nation against which sanctions prohibiting the transfer of technology have been imposed.
Working source code implementing, say, a Kalman filter may be considered "technology." What is Math.SE's role (or SE's role in general) in adhering to these sanctions. What responsibility does a Math.SE user have in ensuring that they do not inadvertently provide such technology to a resident of a sanctioned country?