To answer your question.. no. You're not missing anything important or substantial on that hellhole.
/x/ is full of NiggerRigger type individuals
/pol/ is womanly gossip or hyperbolic over the top bait about how "KEEEEEEEKKKK [X] GOT BTFO'D WILL NEVER RECOVER KEKEKEKEKEKKEKEKEKEKEK IT'S SO OVER, IT'S HAPPENING KEKEKEKEKEKEKKEEK"
/mu/ is a dead board populated with K-Poop enthusiasts only infactuated with the girls and not actual music, while the only shit that gets posted there are dead decade old in-jokes that nobody cares about.
/co/ is autistic and mostly a softcore porn dumping ground when most of the people post there should fuck off to /aco/
/aco/ is a porn dumping ground on steroids
/int/ is a softcore porn dumping ground
/v/ is autistic and full of hot heads
/b/ is just /trash/ and /pol/-lite
/trash/ is constant fetish dumping and moved threads from snca boards
/tv/ is shit but inoffensive most of the time, I actually leaned that Paul Reubens died because of that board, not even kidding.
/lgbt/ is /tttt/
/bant/ is /trash/-lite and /lgbt/-lite
/s4s/ is kind of like /bant/ but with a gimmick
/fa/ is gay and full of homosexuals
/fit/ is gay and full of homosexuals
/r9k/ is a misery circlejerk consisting of people who hate their lives without wanting to change anything about them, also it's a porn dumping ground as perusal
/qa/ is the best board hands down
TL;DR: It's an oldtroon website that consists of bait, shit-flinging, softcore to hardcore porn dumping, homosexuals and a bunch of faggotry. It's layout is stuck in 2003 but the mentality on there is that of modern social media, it's practically unusable.