The parent post says it’s the high economic activity that attracted people even though the US has been more hostile than average by every other measure.
So it's as if the US was a honeypot with a flyswatter.
By the way, your [2] is useless to prove your point: you can't compare absolute numbers (for instance Iceland vs the US).
After the talk on Grazer Linuxtage (media.ccc.de, youtube.com) we got many responses from people also wanting to buy this receiver. We fixed a few issues of the first revision and ordered 200pcs of Revision 2.
We expect the 200pcs to arrive in the first week of May, 2026. The cost of one complete receiver (excluding case and mechanical parts) is about 20 €.
If you want to purchase a receiver PCB, please contact us at the email liked in the Imprint/Impressum of opentrafficmap.org"
I don't think that the author could have conveyed the same thing with less text and more images and videos.
I agree that many project pages (all those about an app with a GUI) could use a screenshot though.