I'm NT and have NEVER wanted to go to my high school reunion. I was neither popular or unpopular -- it just didn't interest me in the slightest.
We did go to my husband's 20th reunion. He wanted to go because he was from a small town, and he knew everyone in the high school, and liked pretty much everyone. [on the other hand, I lived in a big town, didn't know most of the people in my high school, and was fairly neutral toward everyone.] I thought the reunion was just gross. Everyone was drinking a lot, the single women were displaying themselves -- it was just disgusting. What was fascinating is, and what I think is often the case -- the people who were the unpopular people often had grown up to be goodlooking, interesting, and successful. If only you could tell kids this stuff when they are young and struggling with hard times in their high school years . . .