@doppelspurinsel In my experience, there are lots of international tourists that use the Newark airport, but I’m not sure how many of them go through Newark Penn Station!
And if you think the lack of a standard design between states is odd, you should check out New York Penn Station (yes, it’s incredibly confusing how they gave the same name), where there are several different styles of departure board and I’m pretty sure *none* of them show all the railroads.