I occasionally feel pride in not knowing some piece of popular culture, like which celebrity married whom or what movies some actress was in. This is mostly reason 2, signalling my identification with contrarian groups that don't care about such things. There's also an element of pride that I have good priorities about what to learn. There was a quote on here that I can't find again, along the lines of, "people ask how I know so much about science and so little about celebrities, but they never see the connection between the two."
Sometimes I run into people that have rather strong opinions on some topic, and it turns out that they are basing them on quite shallow and biased information. They are aware that their knowledge is quite limited compared to mine, and they admit that they don't want to put in the effort needed to learn enough to level the field.
But that's not really a problem. What is bothering me is that, sometimes, that declaration of ignorance is expressed with some kind of pride.
This behaviour is noticeable on other levels too, in politics or in the sciences-humanities culture clash.
I came up with several hypotheses which might account for this:
Do you notice this behaviour too? What do you think causes it?
EDIT: formatting, style, grammar