Agreed. That's what he was referring to and it apparently works very well. I know it does for my plasma.
At least LG is aware of the "burn-in" perception the same way they were when they manufactured plasmas, but also that they're actively making the OLED panels more immune. I hope we get to where the last gen plasmas were with burn it. Mine is 8 years old at this point with no burn in whatsoever. It does retain an image for a bit when first turning it on, but that fades very fast.
If my 70" vizio craps out on me, I'll have to seriously consider what to get next, and that vizio is already turning purple.