There's something I still don't understand, even after having finished Homestuck. Where did the Black Queen go when Jack Noir sliced her finger off in [S] Jack: Ascend?!!??!! She like exploded?

It does look like she exploded, and it’s a very Unique thing of that scene. Whether it is because only the finger was cut off and it released some Ring Majyyk Energies, because Jack used the Royal DERINGER and that makes it special, because Hussie still wasn’t sure what happened when the Rings were yanked off, or if she didn’t explode and her kind of gruesomely dismembered body was laying off-screen but it was too bad to even show it on-screen, it’s just a thing that happened.