@jakemorph
I think another example of a character Hussie seems to dislike is Sollux. This is less apparent because Sollux isn't written as incompetent like Gamzee is later on. He is written pretty well, but Hussie doesn't use him. His whole double dream selfs/basically double everything, his biotech aesthetic, and coding knowledge could've been utilized in way more ways than it was in the comic, but it seemed like Andrew Hussie simply didnt care about his character enough to use Sollux to his full extent.
other characters are: ARquiussprite (to me, his character didn't seem like anything more than a gag), Gamzee (Murderstuck was very interesting, but after he got his fuckass codpiece and everything he did was told through Terezi, I started to genuinely hate him), and davesprite (he didn't need to be interesting cause he was just a random doomed timeline Dave, but he didn't seem like Dave, he felt like a version of Dave that was way more of a jerk).
I might just be overthinking this/being confused since Homestuck is sorta convoluted, and the majority of Homestuck fans (probably including me lol) have really bad reading comprehension skills.