Re: I have no problem with this.
Then you would be part of the problem. (at least in the US) In the US, the speed limits are set based on the speed of the 85th percentile, so if on a 45mph road, 85 percent of drivers are moving at 50mph, then the DoT will look to increasing the speed limit to 50mph. There are caveats, but that's the general method.
What this means is that everyone should drive the 'safe speed' regardless of how far about the posted limit that actually is, at least during the measuring period.
For example, on I-10 in west Texas, the speed limit SHOULD be well in excess of 150mph because the road is straight, and flat, and the only reason to limit speeds on those types of roads is some braindead jackass in goverment.
Biting the hand that feeds IT
