re: Squiddo,

Harry Potter has a maaaasssssive appeal to a pretty broad section of the public, and Rowling herself isn't that symbolically tied with it -- she's not a fade-into-the-background kinda creative for sure, but I think it's fair to say that most people who're talking or thinking about HP are not talking or thinking about her at the same time. So a lot of people, even people who would personally object to her views, find it pretty easy to keep interacting with HP without getting too much cognitive dissonance from it.

Hussie, on the other hand, is literally in Homestuck. For all of her narrative wars against her own fandom, she's been in close quarters with both the fans and the actual HS narrative the whole time. So Hussie is pretty much always gonna come up eventually in any Homestuck discussion, and the fandom has a lot stronger -- for better or for worse -- feelings towards them specifically.