SIN claim that articles 23 and 24 of the Polish Civil Code have been breached as a result of the take downs, infringing on the group's rights including freedom of speech as well as damaging its reputation.
[...]
A fair world wide web should be free from censorship not only [BWAH!] by the state, "but also by private companies," it adds.

The case, which is being brought before the Warsaw District Court [!] on Tuesday (7 May), is supported by the Panoptykon Foundation, a Polish NGO whose proclaimed mission "is to protect fundamental rights and freedoms in the context of fast-changing technologies."

And, yes, US case law enforcing Titles VII, VIII in the Civil Rights Act of 1964 prohibiting discrimination in public accommodation, housing, and employment by race, sex, religion, age, or country of origin is irrelevant, as a matter of law, to the petition before POLAND judicial courts.
reference
Mobley et. al. v. Facebook, Inc., Case No. 5:16-cv-06440 (N.D.Cal.), class action suit
Summary of Settlements Between Civil Rights Advocates and Facebook

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