A friend of mine coined a term "social pollution" while we were travelling in a country where we are both foreigners. I've observed on the effects of an unbalanced population where the foreigners, whether they are there for a short or long term, over took the number of locals living on a certain area. The cultural changes leans towards providing the commercial needs of the foreigners and becomes unnatural compared to the traditional places where locals dominate the population than the foreigners. I am a liberal kind of person, but I do appreciate things that come naturally. I can walk on beaches with less people. Now compared that, if you over-advertise. The solemnity of good places goes off.