@EQ1 - you're not getting slagged off at all, but the info you've provided is wrong, and potentially harmful to the TV.
Let's start at the beginning. You're right, running static used to help CRTs and Plasmas. In Plasmas, you were recommended to run 1000's of hours of this to harden off the phosphors, making them more resilient to 'screen burn'. You could do this without affecting the life of the TV.
Now OLEDs came along - the big change here is that is was 'organic'. What this meant is that from the moment the TV is first switched on, the pixels will start degrading and dimming. We can help this by reducing the backlight/OLED light level, as the harder you drive an LED, the quicker it will degrade and begin losing brightness.
OLED 'screen burn' is not actually screen burn. The term is used from Plasma as the symptoms are the same, but fundamentally is totally different. The actual term for it is Permanent Image Retention, or accelerated ageing. By pushing static images on the screen for extended time periods (say the red BBC News bar), you prematurely age the sub pixels (red in this case) quicker than any of the other red ones across the screen, and the other colours). This will then show (after a good while) as darker, or different colours compared to the rest of the panel.
On OLED TV's, there are two pixel refreshers. After every 4-8 hour viewing session, the TV will want to run a quick 'cleaning cycle'. In order to do this, it needs to be left on standby. the power consumption on standby is minute - at current energy prices it will cost about 50p per year to leave it on standby for 20 hours a day. By switching it off at the wall, you do not allow the TV to run this, hence every time you turn it back on, it asks to run - this cannot be turned off. Another, hour long cycle runs at 2000hrs. At a high level, these work by the TV understanding what colours have been heavily displayed on different areas, and 'burn off' the sub pixels in other parts of the panel to even out the wear.
Having worked for LG, I understand that when you contact them for support and they take remote control of the TV, they will check how many compensation cycles have run. If you have been stopping it from running and have encountered image retention, you claim will be voided.
The static you're putting on the TV to prevent this is doing nothing to prevent image retention, as it's not pushing all the colours. Further, because you're using the TV unnecessarily, you could be accelerating the rate at which the panel degrades, damaging the TV.
In short, you clearly know about how TVs used to work, and it's great knowledge to have. however, the same knowledge does not apply to OLED TVs.
Don't switch it off at the wall - power consumption is minimal.
Don't prevent the TV from running the daily pixel refresher.
Avoid running 'static' content on the TV that was used to help Plasmas.
Hope this helps. happy to offer any further guidance if you would like.