utopia headcanon: not as awesome as a Utopia Head Cannon.
sjwheadcanonanon: yeah i’d be totally for it if i was sure that it wasn’t something they’d love to have happen in real life, but their politics are that radical. like they once said something along the lines of “tear down the entire fucking system and replace it with some kind of communism,” an anon asked if they actually understood how that would be done and what the system would be like, and they basically replied, “no and fuck you!” so yeah i dunno if i’d trust them to spot the fucked-upness of one of their queer headcanons or deliberately create a queer headcanon that’s meant to be fucked-up. especially since sjw utopia headcanons (like the hp one you mentioned) are a big thing on tumblr, and i think, the nightvale fandom in particular.
I know far too many people who like Night Vale and are afraid to mention it because of random wandering dogpiles.
The real reason not to look in the dog park: SJWs.
I think what you’re seeing there is status claims rather than fact claims. They don’t actually have any idea what the system would be or how to get there. The actual message is “this system is bad and you should dislike it, as I do”. And perhaps more importantly, that they dislike it very much. So basically, if you don’t agree with the claim that it needs to be torn down and replaced, that means you support the current system, or at least, oppose it less than they do, which makes them Better Than You. And if next week, they have a new phrase to explain how much they hate the system, which is that “the current system is so bad you could literally fry an egg on a copy of the Constitution”, then questions about the temperature at which eggs fry would be regarded with hostility, because that just means you don’t think the system is horrible.
I’m speculating, but basically: Spend some time trying out evaluating the things they say as if the apparent semantic content is there only to give you a sense of the relative worth of people; specifically, them and people like them very high, the people opposed to them very low. I bet a lot of it will suddenly make sense.