https://www.mpg.de/16834860/interview-deliberate-ignorance

For example:

> "We distinguish between at least six functions of deliberate ignorance. One important function is regulating emotions. Not knowing certain facts can help us avoid negative emotions. For example, some people consciously make the decision not to view their "Stasi" (State Security Service of the GDR) files because they fear they might contain information that would make them extremely upset or sad. Such as a friend or a relative may have collaborated with the Stasi. Another function is to preserve suspense and surprise: When we read a detective story, we typically do not want to know in advance how the story ends."

They also discuss how blind auditions for orchestras result in a much broader group of people being hired as musicians (basically it's anti-discriminatory wrt non-relevant factors), and also, the Twitter effect:

> "In 2018, an investigation found that false information spreads more quickly and more widely on Twitter than genuine facts. Scientists suspect that the reason for this is that false information appeals to our emotions and often surprises us and defies our expectations. And initially, everything that's contrary to our expectations is interesting to us. We need to know this! That's where deliberate ignorance can help us to build up a cognitive defence to protect us against being inundated with false information."