Question

the notice was posted in britain during world war i. how did posts like this help countries enforce rationing? by publicly shaming people who did not ration by listing locations to pick up available rations

Explanation:

The poster lists convictions for breaches of the rationing order. Publicly naming those who violated rationing can act as a deterrent and enforce rationing through public - shaming. It does not list locations to pick up rations.

Answer:

by publicly shaming people who did not ration