The last part of the article seems to me a very interesting reflection because it's really the one that gives meaning to the project. I think blockchain technology opens up many possibilities and the travel industry is going to make use of it.
I like the idea of locating luggage because it can cause a big problem to lose your bags. It is also very interesting the aspect of the ID of tourists, there are already some projects that work on this idea;).
A platform like MeetnGreetMe is interesting and attractive. While the project gives us the opportunity to meet locals to help us squeeze our trips even further, MeetnGreetMe uses blockchain to manage the entire management in a more transparent and less expensive way.
I like the project, I hope it gets all its objectives and I can use it someday. ;)