Memes

What a nonsense.

occupied by communists after the second world war

Polish communists occupied their own country?

There was very little food, if any at all in stores.

You might have heard about, you know, the war and the real occupation, nazi one. Requisition, destruction, mass murders, death camps. I wonder why that stopped. Who ended it.

I remember specifically

Unless you are 95 years old i doubt it was "you specifically". And also:

I remember specifically that the only thing being in stock in stores was vinegar because the shelves were empty

At least get your propaganda sorted out, dumbass, those were two different separate pieces, the vinegar one was about the 80's (and equally false as the other one).

Everything of value Poland produced, like food, went to the USSR. The only import Poland got were things like matchsticks.

As evidenced by the rapidly rebuilding and repopulating country being made entirely of matchsticks. Yawn. Seriously at least get something less boring, go read some IPN book or something for more plausibly spun propaganda instead of taking your historical knowledge from Jebzdzidy.