The following quote in the article illustrates what they describe as "Wireheading done right":
"Their primary state of consciousness cycles over a period of 24 hours. Here is their routine: They wake up and experience intense zest for life and work at full capacity making others happy and having fun. Then they go crazy creative in the afternoon, usually spending that time alone or with friends, and explore (and share) strange but always awesome psychedelic-like states of consciousness. Finally, at night they just relax to the max (the healthy and genetically encoded phenomenological equivalent of shooting heroin)."
I can see the appeal of this type of existence. But taking a step back, I question the value in experiencing these states unless they correspond to real events in the world.
For example, focus on "They wake up and experience intense zest for life and work at full capacity making others happy and having fun." This is a perfectly fine sentiment to have. But things should feel better because they're better things to do. Wouldn't a wireheader working in a cheap toxic factory be just as happy as one working in an expensive, safe factory? How might that ultimately impact the factories we design?
With utilitarianism, we attempt to maximize pleasure (very roughly speaking). But part of that is because pleasure has been tied to good events by our built-in wiring. If we have the ability to make any event pleasurable, it feels like we need a new ethical system that employs a full gradient of emotions, including low-valence ones, to appropriately reflect the difference between the desired and the actual reality, and avoid a dystopia where everyone is happy. How does wireheading take this into account?