It has to do with the subject line of the reply. Some people do not have a clue that the subject line is NOT the entire content of a post.
I cannot believe how many times people do this.
Let me give you an example PEOPLE!!!!
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The largest tablet in the world was released today, with the new Attaboy CPU and 14QB (qudra-bytes) of RAM, running the DoTell OS allowing you to make a milkshake while cliff diving!!
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The above IS NOT A TITLE/SUBJECT LINE!!!!!!!