I have a 15 inch 2015 Macbook Pro that is starting to have the same problems. I contacted Apple yesterday and they said they had no repair program for this issue. In my opinion, having a laptop screen issue like this is a MAJOR flaw, and they need to address it and own it. I did try the baking soda yesterday on a little bit and did not see much of a difference. Someone also on youtube did a live demo with listerine and it got rid of it. Have not gotten that gutsy yet. Any info you all have, I would really appreciate it.
It takes a lot of work. I probably spent an hour and a half and my screen was already pretty rough. Maybe it would have gone faster if I pressed harder. Given the risk of damage. I decided to take it very light. I also made a much thicker paste. As the original formula released far too much water for my comfort.
Also I think paste is a misnomer. It's more of a slurry. As the water and baking soda easily separate under agitation.