alt Hacker News> A screen with an ad on it is objectionable enough, even if the ad is untargeted.
Especially these days when pretty nearly the entire advertising industry has a whole library of "dark patterns" and psychological trickery they've effectively outright "weaponized" against the "consumer class".
The problem with ads is that they steal your attention to serve someone else’s commercial interests, whereas the objects in a home should serve its occupants’ purposes, practical or aesthetic. The fridge in particular is a site for displaying family information like the calendar, children’s artwork, etc. so an ad there, even an honest and passive one, is a violation.