On Workplace more than any other Stack Exchange site, I see Me Too answers duplicating most or all of the content of earlier, better/more elaborate answers. We've got some question quality problems IMO as well, however I'm not sure improving question quality can solve this problem.
I'm not sure if it's because "everyone's an expert" or what, but the duplicate answers are essentially noise, and for the most part they get upvotes. This problem can be seen in a huge way on Is it acceptable to use pirated software on the job? and to a lesser extent on How can I reduce the size of a long resume without hiding all my skills and experience?
How can we discourage these duplicate answers that don't add useful information?