headcanon: some of the people we haven't seen in a long time that had specific roles (Derapchu, Kier and Dev, Reddoons) are considered missing, but they deliberately made themselves go missing for different reasons (i.e. Derap feeling like he's not good enough for BAT/stress that came with BAT and Kier/Dev wanting to get away from Boosfer). the exception is Branzy because he isn't missing. he's living with Clown in the Nether.
additional headcanon: after Branzy moved in with Clown, Boosfer moved into his old house because he didn't have anywhere else to go and needed a place. i think this one is canon but since we dont know where Branzy went canonically, im counting it as one lol
(btw i love your responses to people's headcanons, mine included!!)
i'm happy you like my answers !! i always worry that people don't like what i post and decide to not ask anything ever again.... thank you :D
the server is a dangerous place, where everyone is in danger of dying no matter what and with only one life, most of them would rather go live somewhere else where it's safer and less chaotic
some of them leave because they no longer have a place in unstable (like derapchu and reddoons), while some others want to start again from scratch (like kier and dev). hadn't they left the server, who knows what would've happened to them or to the story
maybe derap could've prevented the fall of BAT, or at least keep leo from going mad. maybe reddoons would've been over throned by his people after lettucek showed them what their lives could be. maybe kier and dev would've gotten killed by wemmbu after finding out the identity of the invisible knight
also, boosfer acting like a homeless dude (he is) and stealing branzy's house is really funny if you think about it. canonically i think branzy is with clownpierce, either that or he's in the mines because branzy said uu!branzy loves the mines /hj