I would say people that are constantly tail gated need to evaluate their riding/driving habits before blaming others:
Are you riding on the left lane/Passing lane? if you are even at the traffic flow speed, you need to get out, if you are in that lane for anything else than to pass a car you then need to get out unless there is bumber to bumber traffic.
Are you merging into the hyw way to slowly? if you are you will be tailgated
I have 99 problems but being tailgated ain't one, I wonder why you have that problem. Not trying to be a prick, but you need to really evaluate your riding habits.
Gotta agree, I don't get tailgated too often, mostly because I follow "rules" similar to what you posted... I know people that complain about being tailgated all the time, or about "people always in a hurry, passing me and flashing lights behind me"... Well the common theme in that situation is them.
In the truck I lightly tap the brake pedal a few rapid times... Usually gets the point across.
On the bike I'll do a few brake light taps, use the "back off" hand motion, and when traffic comes to a stop I'll turn around enough to look directly at the driver behind as they come creeping up... usually stops them. I've also done the swerve in my lane thing, it makes you unpredictable and they will generally back off.
However, I'm typically not tailgated, because if I'm not passing, I'm not in the left lane, and I'm not sleeping while I'm driving.
In any case I'm being tailgated I increase my stopping distance ahead of me while in traffic, this has saved me a few times, and prevented a situation where my brand new (had 4000km on it) truck was rear ended, it could have been way worse if I wasn't watching my mirrors and creating extra braking space for the idiot behind me.
The single best way to get the message across to a tailgating driver is to turn on the rear-facing emergency lights. It works rather well. In the rare circumstance that it doesn't, I arrange a brief meeting with the driver, and write it down for them.
I have some very bright halogen reverse/spot lights on the back of my race trailer that are wired up to a switch in the truck (so if it's dark at the track and need to work on the bike I have lots of light, or for backing up in the dark) and they work very well for getting tail gaters out from behind me, and the idiots that pull up behind and leave their high beams on don't tend to leave them on very long.