Your assumeing that
1-your going to react any faster cause of your location. Somebody coming from your rt rear qtr will be less likely to be seen, as they may be blocked by your blind spot..
2-you have actually DECREASED your buffer zone by the distance between the right and left sides. You buffer to your left is smaller.
The OP is the biggest argument against this method, as I recall him paying the price.
1: I'm not going to react faster, though it's certainly possible. Being a bit more to the side gives you a better view of their hands on the wheel, the front wheels of the vehicle, and also their head. But all that aside, being to the left doesn't give you any more time to react than being to the right. What it does do, though is give you more space and therefore more time between you and the offending vehicle before contact is made. Think about it. You're riding next to a four door SUV and you're abreast of the rear door. The driver makes a sudden dart to the left. Which position is going to give you more time to react? Riding in the right part of the lane where you might have 4 or 5 feet between you? Or riding in the left part of the lane where you have an additional 6 feet or more? That extra space can make the precious difference between going down or having the space (and time) to get on the brakes or swerve and avoid contact. Or this example: If I'm trying to punch you out, do you have a better chance of dodging my jabs if you're standing within a forearm's length of me or if you're standing within a full arm's reach of me.
2. Sure, the buffer is decreased to the left, but that's more than offset by the buffer to the right. Think about it. If you ride to the right, yes you've increased your buffer to the left, but you're gambling that you'll actually have the time to use it. It's no sure thing, as we all know they'll often just dart out, regardless. Your buffer to the left is not what you think it is because is compromised by the assumption that the driver will see you and therefore not change lanes. The buffer to the left is not all that people think it is.
If you ride to the left, that buffer is always there. Regardless.
And think of this: If someone does lane jump and you have to take evasive maneuvers, are you limited to the lane width? Often not. Regardless, you have a limited amount of space to react in. If someone is lane jumping, they've committed and they're going all the way. So, ride left or ride right, the car's coming over the same distance. And it's going to happen in a split second. They're going to be occuping your space whether you like it or not. So, would you rather be to the right where your time to evade is shorter? Or to the left where you have more time? Is it better to be to the right and have to immediately swerve and then/simultaneously apply your brakes? Or is it better to be to the left and gain some time for straight line braking and then serve if necessary? Which one give you more control of the bike?
One of the failing points of the ride to the right and leave a buffer on the left is the assumption that you'll have the time use that buffer. And what is forgotten is that an evasive manuever performed from the left side of the lane involes less dramatic swerving.