Why is duplicate content bad?
11295
What is duplicate content and how can I avoid being penalized for it on my site?
113626
"Close as duplicate" - what if only the answer is a duplicate?
105400
What should we do about *identical* cross-site duplicates? (i.e., copy-and-paste cross-posting)
150771
Do sort and page parameters count as duplicate content?
2512
Stack Overflow duplicated layer bug
43457
Don't delete comments with link to duplicate if they are modified
110889
What is the most rampant duplicate on Stack Exchange sites?
38385
Similar content on multiple pages. How does this impact SEO?
29817
Closed as a duplicate, but the duplicate list is empty?
123324
Duplicate dialog breaks when the identified duplicate is deleted
15326
Duplicate explanation should encourage improvement of original
94049
Does www and non-www suffer duplicate content penalty?
82937
Why are these sites cloning my content, and how do I stop them?
138642
Should the "closed as duplicate" message be altered?
112233
Translated content: Are they considered as duplicate or unique?
78861
Why are there two separate boxes about duplicate questions?
155956
Does URL encoding create duplicate content?