Short answer: No.
Long answer: Homestuck is (among other things), a long-form conversation between author and audience. The forums and fandom continued to be an influence on what is said on the page long after reader submissions stopped being used. A lot of the clamor about "author spite" comes from people who, imo, were mad that the story didn't play out in a way they envisioned. But even the most contentious events (like the dancestors for example) carry important discussions and arguments.
But yeah if you liked Gamzee at the start that is on you. That guy sucked day 1.
Magic is FAKE AS SHIT/FUCKING REAL