What types of cases do courts usually refuse to decide?

Cases that raise a "federal question" involving the United States Government , the U.S. Constitution, or other federal laws; and

Cases involving “diversity of citizenship," which are disputes between two parties not from the same state or country, and where the claim meets a set dollar threshold for damages.  

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all i have to say is that people are truly ignorant and don't have anything better to do with their lives.

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they had banned mine while i was answering a question