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The existence of uncensored media changes the psychological contract between the audience and the participants. When watching the broadcast version, the viewer is constantly reminded of the production crew's presence by the blur; it is a visible sign of mediation.
The standard show always cuts away respectfully when a contestant is medically tapped out. The uncensored DVD includes the full, unedited medical assessments. You see the hypothermia, the staph infections, and the parasite removals in their full, clinical detail. It is a stark reminder that this show is not a vacation.
: You are a superfan who wants to see every minute of survival footage, unedited dialogue, and extra "survival facts".
The primary reason is a mix of broadcast standards and brand identity. Naked and Afraid airs on basic cable, which adheres to Federal Communications Commission (FCC) guidelines regarding indecency. While premium cable channels (like HBO or Showtime) can show nudity, basic cable channels generally cannot. Because the show is produced for a mainstream audience and syndicated globally, the censored version is the "master" version.
While many assume the blurring is purely to protect the sensibilities of modest viewers, the show's producers have revealed that the process is far more technical and protective.