The answers to travel questions often depend on the traveler's (or proposed traveler's) citizenship and itinerary. Frequently this information is not disclosed in the question, or is obscured in confusing ways. We ask for clarification a lot.
I suppose this could be because the asker is anxious or afraid that the asker's identity might be revealed, and used (by the asker's country's security services, say) to prevent or interfere with the travel, or otherwise harm the asker. It's also possible that the average asker knows less about travel than we do or doesn't think about what information is needed, and thus doesn't include it.
Am I missing something? Are there other reasons people don't present this information?