Contrary to its name, activating the perk grants you 2 additional perk points immediately. Since it costs 1 perk point to activate, taking this perk results in a net gain of 1 perk point for your character. Strategic Use
In the survival RPG , the "Nothing" (or Nada in Spanish) perk is a unique, somewhat deceptive mechanic that acts as a secret way to gain extra perk points . Key Mechanics of the "Nothing" Perk
Despite the warnings, taking this perk is highly recommended by veteran players on forums like the Steam Community because it serves as a "free" upgrade that allows you to buy more expensive or essential perks sooner.