I use the database to prompt me to glance at the speedo to make sure, double check, I am not speeding.
I also use the warning to confirm that the camera is still there for verification if necessary.
= not everybody uses it as a tool for a tool.
Satnav:
Garmin 2599 LMT-D (Indoor test rig)
DashCam:
Viofo A119 V3
Car Average MPG :