HaPe-CZ, why are you adding German terms specifically? Why not Chinese? Or Spanish? Or Arabic? What criteria are you using to determine which language goes in the name?

If we tried to include every language in the name, then certainly every literate person in the world could read it. But of course, it would be unreasonably long. So the global community of OSM mappers generally agrees that each local community should decide which languages are appropriate for the name.

Despite our significant English-speaking majority, the United States is a vibrant multilingual country. We have plenty of places where multiple languages belong in the name, like Kaser, New York [1] or the Navajo Nation [2]. However, I'm not aware of any border communities in the US with a significant German-speaking population, so naming these lanes "LKW" would be against local tagging guidelines. Nearly all signs in the US (outside of Puerto Rico) are in English, and we map what's on the sign.

As a local of the Czech Republic, you are free to propose changing the language of names in your home country. But when you try to change tagging guidelines halfway across the world in a country you're not familiar with, it's natural that you'll receive negative feedback.

[1] https://www.openstreetmap.org/node/158859890#map=15/41.1194/-74.0627
[2] https://www.openstreetmap.org/relation/9795457