QUESTION: Fix punctuation: The Bullshit Artists at Bullshitist are committed to calling bullshit on everything
ANS: The Bullshit Artists at Bullshit.ist are committed to calling bullshit on everything.

QUESTION: Fix punctuation: The fact that a substance is on the list does not mean that the Danish EPA is thinking of prohibiting use of the substance but that the Agency wants to see use of it reduced
ANS: The fact that a substance is on the list does not mean that the Danish EPA is thinking of prohibiting use of the substance but that the Agency wants to see use of it reduced.

QUESTION: Fix punctuation: Water sports clubs present themselves at the Weser Kutterpuller rowing a race and look forward to landlubbers who want to try on the belt and the extinguishing of the fire boat Bremen demonstrated the publics willingness deletion
ANS: Water sports clubs present themselves at the Weser, Kutterpuller rowing a race and look forward to landlubbers, who want to try on the belt and the extinguishing of the fire boat Bremen demonstrated the public's willingness deletion.

QUESTION: Fix punctuation: Purpose to prepare for European Monetary Union and introduce elements of a political union citizenship common foreign and internal affairs policy
ANS:
Purpose: to prepare for European Monetary Union and introduce elements of a political union (citizenship, common foreign and internal affairs policy).