Any idea how search engines ( Google , bing , Yandex ) handles this scenario ?

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

• 
  Saijo George: Any idea how search engines ( Google , bing , Yandex ) handles this scenario ?
  
  scenario:
  A page has a meta tag
  <meta name="robots" content="noindex, follow">
  
  let us assume 50% of the links within the body of the page use the rel=nofollow attribute. ; Will the search engines follow ( and pass link juice for these links )
  
  
  If you have any case study , official statements , etc plz link them below
• 
  Patrick Rabanser: Hello +Saijo George, if a Site has ;
  <meta name="robots" content="noindex, follow"> the search engines won't index that page, but the spider will follow the links on that page. ;
  Now if the spider encounters a rel=nofollow the won't follow that link!
  The more "specific" directive overrides the "general" directive, so rel=nofollow overrides Meta...! ( Like CSS rules).
  
  Here it becomes tricky...
  Google sometimes follows nofollow Links but does not index the linked page, if your page is linked from somewhere else with default setting(follow) the page will get indexed anyway!
• 
  Saijo George: +Patrick Rabanser
  I was thinking that would be the case too, thanks for sharing your opinion. BTW have you come across any documentation that specifies this?
• 
  Patrick Rabanser: No I think it will be hard to find documentation about this as it is a very particular question.
  May I ask where you came across such a scenario? ;
• 
  Saijo George: It's for a forum that allows user generated content in the description. I want to selectively wee out the low quality stuff ( usually from non contributing members )
• 
  Tim Capper: Rel="nofollow" means Do Not Vouch they will still follow.
  
  
  
  Matt Cutts explanation of "nofollow" :  ;nofollow is intended to say "I don't editorially vouch for the source of this link." ;
• 
  Edwin Jonk: From the expert panel in this weeks SEO Questions hangout on air on 00:25:24 into the YouTube video: https://dumbseoquestions.com/q/any_idea_how_search_engines_google_bing_yandex_handles_this_scenario