Repeating sentences is not smart - it does not add value to a postThis instruction is primarily with reference to the articles section, but is applicable generally to all sections.
Some of you are repeating sentences just to add length to an article or an Ask Expert answer or a forum response. In what way exactly is it going to help? Are you trying to beat the automated system in the forum? Are you trying to meet the required length of an article? You think giving a long answer to an Ask Expert query with repetition of text will get you additional points & cc?
Note that what it does is create boring content and is not going to excite the reader to peruse the rest of your post or check out your other contributions.
Do please focus on content that is informative, no matter that this may be just a few lines where required. Conciseness & preciseness is the key to good content.