You’re on the road. If you are being passed on the right, move over. If there’s a line of cars behind you, move over. If there’s no other cars to your right, move over. When you drive slower than the traffic to your right, you cause others to speed around you. That’s dangerous. Don’t blame others for speeding, look at your actions. You do not own the left lane on the road. It is not your right to drive in the left lane at whatever speed you choose. Move over. Besides, it’s the law.
If something bugs you, let me know at firstname.lastname@example.org