Why have I not read any reports of permanent SDE "burn in"? Probably because I don't waste my time on reddit. Or because it's clearly bullshit. I can totally believe there might be long-term effects from extended use, but that is not one of them. But since apparently you can't tell the difference between VR and moving your head in front of a big monitor, you're probably best out of it.
You might want to look into what people have experienced with laser eye correction surgery. It turns out it's temporary, does actual damage to your eyes, and your eyes generally just get worse and your surgery is useless. But they said it was safe didn't they? Only one problem, you are not guaranteed anything in this world, so if it messes your vision up, or really just takes your money and you have to get glasses in 3 years, then go ahead and sue. You'll probably lose and still have bad eyesight.
There have been several reviewers that stated that their eyesight outside VR now has a screendoor effect where it appears they still have the oculus on, and can clearly see a screendoor in their everyday vision.
Five-hour play sessions with an Oculus Rift are giving me “grid eyes”
"But even 1920x1080 isn’t that high a resolution when the screen is centimeters from your eyes, and the lenses necessary to focus the screen make it look like you’re sitting inches from a TV (as many of us oldsters used to do when watching Saturday morning cartoons). The individual pixel elements of the screen are clearly visible in a grid or "screen door" pattern. The image itself is quite fluid as it changes, but the bright dots making up the picture themselves don’t move.
I can still faintly see this grid right now when I squeeze my eyes shut, in spite of the fact that I’ve had a solid night’s sleep. It’s superimposed over the usual retina noise I get when I close my eyes—or perhaps it’s better to say that it’s a very prominent part of the noise. It’s definitely less prominent than it was last night after a five-hour gaming session, but it’s still there."
You do what you want, and I'll do what I want and have a good day. No problem with me that you do whatever you want.