Haven't you ever been irritated by someone saying, patronizingly, "you're so smart," when you do something? Where they only see you as someone who can solve problems, or do things they can't do? Alternatively, are there people in your life you have to get along with but you feel like "they don't 'get' it," like you do? Defining people or yourself by how "smart" you or they are can be shallow, open to misinterpretation and stops you from seeing others as worthy to hang out with. If you really can't stand someone or have legitimate need for certain smarts, then by all means judge by what criteria you need to. But don't stop yourself before you start -- don't filter out some prospect or new connection because you can't measure up or think less of them. You may not have seen things they way they have, but you might find more in common/to like after giving them a chance.

I think you're talking about the costs of being smart, when the question is whether or not you like interacting with someone else who is smart.

But to the question that you bring up, I think you're right - being smart definitely has it's downsides. Ignorance can be bliss.