I know YouTube will rate thumbnails and tell you how the thumbnail is doing. I believe they also uploaded a feature where you can upload multiple and it will attempt to change them to see which works best. I see this a lot with Minecraft YouTubers (mostly Grian). It seems to be less trying to trick previous viewers and more so getting the highest rating in the YouTube panel. I think it is partially bs, as there are times I’ll scroll past a video not wanting to watch it at the exact moment and it seems like YouTube takes that as being a bad thumbnail.

“user-applicable fix” is hardly correct, they are installing a fix provided by the company that has the recall. The company just so happens to provide an over the air download to patch the issue instead of having owners go to a dealer.