The comments on (and migration of) my question https://travel.stackexchange.com/questions/50836/how-can-us-citizens-not-residing-in-the-us-visit-the-white-house seem to suggest that a person who is a citizen of a country cannot be a tourist there, which to me is bizarre -- the question is about travellers wanting to see tourist sights. It just happens to be specific to a certain class of tourist. In particular, it seems that the question is not about immigration and living in a foreign country, so it's off-topic for Expats.SE, but questions about how to see certain sights are on-topic for Travel.SE.
Of course I got my answer, so I don't really mind, but it seems like we should clarify whether or not internal tourists are welcome on Travel.SE (I personally often ask questions about the country I live -- where do most of my tourism -- and these have not been considered off-topic before).