(TSC) Google ignores multiple links to the same URL

Selected answers from the Dumb SEO Questions Facebook & G+ community.

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  Sasch Mayer: +Ankit Gupta Why would you add nofollow to internal links?
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  Sasch Mayer: +Ankit Gupta To me, this is just negative gain. Further, just because Amazon does it, doesn`t mean it`s the correct approach to take.
  
  It`s 2017, not 2007... My advice would be to focus on making your site a customer focused resource, instead of worrying about PR Flow...
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  Ankit Gupta: +Sasch Mayer It is the concept of link sculpting wherein we prevent passing the links juice to a non-important page by making it nofollow such as privacy policy and terms of use pages. Giants like Amazon and Alibaba have done this on their websites.
  
  Since, there is common navigation in header and footer (we can`t help when it comes to UX), using the same technique, we allow only one of the two same links to pass the links juice. This is why I use nofollow for internal links.
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  Bob Gladstein: FWIW, Matt Cutts stated some eight years ago that PR sculpting doesn`t work. He even rubbed it in, saying they`d made the change a year before he announced it, and no one had noticed.
  
  mattcutts.com - PageRank sculpting PageRank sculptingmattcutts.com
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  Clint Butler: I`d venture to say that in the past nofollowing certain pages on a site was done to "sculpt PR", however, today there is a practical reason for doing it.
  
  By nofollowing those unimportant pages your telling the bot not to waste your crawl budget on these pages that won`t change, and even if they do, they provide no value in the search results. Now the bots can use your "crawl budget" on more important pages of the site. We`ve seen improvements in rankings and indexing by making sure crawl is happening properly where we want it so it might be something for you all to test.
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  Ankit Gupta: +Bob Gladstein Yes, I am following the same concept and have gained good SERP