Small minds are attracted to zero-sum thinking. They believe that anything that benefits someone else must hurt them. That’s where the myth that sites should never expend “link juice” comes from. The idea is that if you have any links in your articles, the site you link to will gain in search rank and you’ll lose correspondingly.

How much influence do these people think they have over search ranks? Unless they’re operating a leading site in the field, their effect is negligible. Besides, presumably they aren’t linking to their competitors, so giving another site a slight boost doesn’t do them any injury.
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