That caught my eye also, so yeah a quick search said the population of the town is 316,000 people so a little less than dollar per person in the city.

Those squares are switches. Commonly use in Germany for light switches. I’d guess they might be buzzers for an apartment lobby, hence the phone with no number pad.

The rule is first time you use an acronym you say the whole thing, e.g. same shit different day (ssdd) then you can use it.