Is the concept of someone who usually doesn't eat potatoes getting a bag and spending the next week making some potato dishes really that inconceivable? I don't doubt that this will lead to some waste - I've thrown out more half empty potato bags than I would like to admit - but that's a very negative outlook.

Also how do you choose between negative second order effects? Salting roads creates negative effects for groundwater and plants which are really hard to mitigate. On the other hand the second order effect of people slipping could at least be dealt with on an individual level by putting spikes on your shoes.