To a degree this is sensible, if someone is tailgating you and you need to perform an emergency stop there's more likely to be a collision, so you need to increase the space in front of you for more gradual braking.
Same. I start driving at a speed that is safe for the distance they're keeping (in stead of what should be the other way around). That is usually quite effective.
You'll just have to lower it more if they start getting closer again. Eventually they'll get the courage to pass instead of hugging your rear bumper, and at safer speeds too
If you’re in the right lane, great. If the natural flow of traffic is 15 miles over the limit, any car in the far left lane driving significantly slower than other vehicles invites needless risk. Absolute, inflexible rules frequently lead to disaster. Cars that have to pass on the right creates many disasters.
That is wonderful. May I thank you in advance for sharing this wisdom with your fellow never-over-the-speed-limit drivers? Empirically, I observe many who may not have heard it.