The adult fans of reality TV whose personalities they mapped ended up having pretty much all the worst traits possible. Professor Reiss himself writes that "the people who watched reality television had above-average trait motivation to feel self-important and, to a lesser extent, vindicated, friendly [and] free of morality." If each personality profile was a different Christian Bale character, Patrick Bateman would be the model reality TV viewer.
Their theory was that reality TV was essentially the antidote to self-improvement: Instead of feeling better about yourself by achieving anything, you can just watch the worst possible humans fawn over Flava Flav for half an hour! It's like a Hot Pocket for your self-esteem -- quick, easy and overall bad for you.
In an objective, scientific sense, listening to this man talk erodes your soul.
The study also found that those who watched reality TV were far more concerned with social status and vengeance, and significantly less motivated by idealism, morality or honor. In other words, asking people whether they watch My Big Fat Obnoxious Fiance is a great way to discover who'll be wearing the leather after Mad Max happens.
His Reiss Profile "social status" score is Humongous.