Below are two ways to frame a review: one from a (supportive of the group's ethics) and one from a security/functional perspective (explaining why users see this message). Option 1: Community & Ethics Review Focuses on the "honor code" of the software scene. "R2R: Still Setting the Standard for Scene Integrity"
The phrase is a philosophical stance against the monetization of "warez" (pirated software). Within the "Scene" (the underground community of software crackers), there is an unwritten code that releases should be shared for free as a challenge of skill or for preservation, rather than for profit. r2r is against business warez top