person I knew actually had self adjusting headlights, which somehow were damaged and would not adjust properly anymore. They drove around like that for years before retiring the vehicle.
Where was that? In Europe this should have been spotted during the mandatory inspection.
No, they highlight some problems with IP4: Bad distribution of IP4 ranges and bad usage of those ranges. So the graphs show the US has way too much IP actresses, some under used/unused and some overused. The blog post they are from is pretty clear about this.
These graphs do not give an indication of how many users per country there are. There are in fact statistics on that which expectedly show China and India on top. These however do not take into account that social media use way more popular in the U.S. for now.
The closest stat may be Reddit users by country which seems to indicate that about every 2nd user is from the US. (Not sure if Russian/Chinese bot accounts also count towards these though).