"The Polish Ministry of Finances just confirmed that
in Poland you have to pay tax for using Free Software. English version
of text will be posted soon."
In the mean time, while you're waiting for a translation, you can
attempt to parse the story with Poltran.com. A cursory look at the story indicates that the Polish government believes receiving something of value, even if it's free software, is receiving something of value and so is subject to taxation.