re the pecking order, that poster is right. thing is, the day you walk out of the HS that order ceases to exist. if you go to college, particularly far away, you sort in with a whole new set of people. your old station doesn't exist. the popular kids aren't there. if you stay home and get a job, you sort into a workplace and the adult life of your town. the kids weren't fans, well, maybe the coworkers and adults are.
and, fwiw, if you don't like where you fit in your town, late teens and 20s, before you rack up mortgages and car debts and other financial tethers, are a good time to start over someplace fresh. either for college or as an adult entering real life.
but anyhow, point being, second you leave graduation all that crap evaporates. you won't see a lot of them again. whether they liked you doesn't matter. you hit your mid 20s successful and the weird thing is popular people who gave you crap, but struggled in their own transition, start coming to you for advice. it all resets. other than a reunion, no one cares.