If I post a link in a comment for question A that links to
question B, a great feature happens, question B links back to
question A.  However, if I indicate an even closer relationship
by flagging Question A as a duplicate of Question B, no backlink
is set up on question B:  (see here, for an example Question A:
What is a good free source control solution and here for the
unlinked Question B: What is the best source control product for
Visual Studio development? ).  Now, there may be concerns
relating to search engines following links to duplicates and
that hightening visibility of the duplicates via search, so they
should probably be rel=nofollow links, but it'd be much easier
to decrease duplication if flagging as duplicate created a
widening visibility of potential duplicates.  share|improve this
question add comment  1 Answer  up vote 1 down vote accepted
The linked section only applies to what is visibly linked on the
question. If you flag a post, that link is not visible. To that
end, flagging as a clo