All I can advise is a little bit of empathy. There are plenty of people who are nerdy, and have horrible social skills. For every bit of how obnoxious “I’m so high IQ - I went to college when I was 13” sounds to you, the flip side is that the person saying that probably:

1) Doesn't have very many friends

2) Which doesn't give many opportunities to practice social interactions

Which sort of cycles back on itself. It's hurting them a lot more than it's hurting you.

Society could use a lot more empathy.