This thread is an additional argument in favour of moving part of the content into the mother article. The "terminology" section is a pure coatrack, because it discussed terminology for "mass killings", not for "Communist mass killings". This is as ridiculous as to have, e.g. a "Chronology" section in the Battle of Kursk article, which started with the words: "no generally accepted date for start of WWII exist in historic literature". The "terminology" section definitely belongs to the "Mass killings" article, not to this one. Even Semelin discusses leftists calssicide, not Communist classicide. Yes, Semelin and Rosenfielde speak mostly about Communism, so these two sources may be used as a source to demonstrate that these two scholars attempted to develop a terminology for Communist mass killings. With regard to all other sources, they definitely do belong to the main article, not to this one.