https://bugzilla.wikimedia.org/show_bug.cgi?id=42594

       Web browser: ---
             Bug #: 42594
           Summary: Change $wgNoFollowLinks to default to false
           Product: MediaWiki
           Version: 1.21-git
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: minor
          Priority: Unprioritized
         Component: General/Unknown
        AssignedTo: [email protected]
        ReportedBy: [email protected]
    Classification: Unclassified
   Mobile Platform: ---


$wgNoFollowLinks currently defaults to true as an anti-spam measure. This works
against the goal of many wikis in adding legitimate external links, viz. to
promote and draw attention to those linked-to sites. The wikis that are overrun
by spam generally won't have many incoming links because people prefer to link
to useful content, so their influence on pagerank won't be all that great. On
the other hand, wikis that lack an effective CAPTCHA will be spammed regardless
of nofollow because the cost of spamming them is so low and there is the
potential to get at least some pagerank boost by means of the sites that mirror
the wiki and don't use nofollow.

In short, setting $wgNoFollowLinks to true probably does more harm than good to
most wikis' missions. Some system administrators probably don't think to change
it, since it doesn't show up in LocalSettings.php. In most cases, we'd be doing
them a favor by having it default to false.

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