my personal examples of dubiously canon are things i've put together from implications in Homestuck for my own comic, but things i would have to actively make a case for when arguing, rather than it being an agreed-upon read. agreed-upon reads tend towards the shallow and obvious and tend to be pretty cyclical depending on their popularity. nepeta cannot not be the badass apex predator who tears down giant animals with her bare hands, and fujoshi queen who keeps an updated ship chart of all of her friends simultaneously, nepeta instead oscillates between the two because just one trait is simpler, easier to keep track of. (see again: inability to handle complexity and contradiction.)

so here's several facts in a leading order to make a case.

- in homestuck, black holes are non-literal thresholds between worlds.

- beforus does not have the orbiting green moon, only the pink one, which has natural landscaping (and meenah's hive)

- the green moon of alternia is given this mid-century architectural style that coats the entire planet.

- the 8-ball planet in caliborn's session is given the same mid-century architecture

- black and green are linked colors in homestuck's grand color scheme. space as an aspect is black, while space players speak in green. ("space isn't green" was a big twist at the time!)

- caliborn, at one point, says he would paint with calliope's blood

with all these points, would it be reasonable to say "the green moon of alternia is the 8-ball planet from caliborn's session?"

when it's all laid out like this, it's a compelling idea. and my personal feeling is that this is just true. but that's a lot of implication and inference to pull on, more than the average person is willing to do. and so it's in this kind of dubious place of canonicity. there are a lot of little things like this in homestuck. for example, the music boxes gamzee and vriska use to time travel around the alpha session are probably damara's and not aradia's.

there's no page there saying "these are actually damara's music boxes", though. so you have to argue for it.