Shrinkflation generally means same price for less product (grams, fluid ounces), but enshitification by slowly decreasing the quality of the ingredients is also a problem.
Do we put that under the shrinkflation umbrella or track it as a separate problem? Since they are both unwanted solutions to the same problem, seems like they should be kept together (to avoid a Goodhart's Law fiasco)
I recall eating an Oreo after fifteen years of not having one. At first I just thought I'd forgotten what they actually tasted like, but the more I thought about it, the more I could see a long chain of focus groups asking customers if cookie A and cookie B taste the same, if one tastes better, and slowly changing the formula to only alienate 0.2% of the customers each time until one day I wander up and find I'm part of the 10% they've cumulatively alienated.
See also how only some of us can taste certain artificial sweeteners as sugary toxic waste instead of sugar (saccharin tastes to me like drinking soda after licking a 9 volt battery)