Andrew Hussie likes fucking with people. I concur.

I honestly don't think it's any more complex than that. I have never seen a valid claim to Huss "hating their fans" within the text of the story, it's always just story decisions that the person speaking doesn't like or which are jokes that didn't work on them (which, true to form, I've never been a fan of the "Huss creeps on Vriska" gag).

Even outside all this, I'd characterize Hussie more as negligent or dismissive than outright hostile towards the fandom. Certainly someone who makes...a lot of mistakes. Like, a lot a lot. But my strongest impression in all that has always been one of Hanlon's razor, just a rich kid trying his best but not being well-equipped to handle the hot potato in his hands.