These posters can be seen in the shopping mall areas of Fraud, advising people to not take too much, showing that their society is still very much recovering from the Great War despite how clean and civilized and normal everything looks. Some of these posters you have to flip horizontally in Paint or something to be able to read. 

These kind of stereotypical big malls and supermarkets are a symbol of abundance. There's the infamous anecdote about Gorbachev going to America, seeing how much stuff was available, and being convinced that capitalism was good because of it. They're supposed to be a place where everyone can get what they want with no scarcity. 

And yet... there's \*not\* abundance. This place that's supposed to encourage you to buy whatever you want is telling people to \*not\* buy new clothes and instead repair their old ones to save resources. They've created the illusion of a society where everything is plentiful, even though they have to advise people to only eat one chicken wing \*for special occasions\*. You could extrapolate that to say that they've built an entire society that looks completely normal and functional even though they've just been through an apocalyptic event and in the long term Humanity is probably cooked... which would make sense with what Hell says in the hidden book. 

Their whole society at this point was a fraud.

Interesting lore tidbit about a certain environment in Fraud