My Shiny Roaring Moon hunt is going surprisingly well, I'm 2/2 on the Roaring Moon/Sandwich scale.
The first sandwich only yielded a single Roaring Moon on a Dragon-type sandwich during the last few minutes but I did manage to find a Shiny Pawmi in a group during the hunt. I was actually kind of worried that I'd have to whiff one this sandwich since I have a policy of not resetting a run if I spawn a non-boosted Shiny.
The second sandwich (which was Dark-type, a bit of a no-no for Shiny hunting Roaring Moon due to one-to-two additional Pokémon species that could spawn under it) yielded a whopping
five Shinies, a personal record for me. I ended up catching a Zweilous, Sneasel (with a Cloud Watcher mark), Roaring Moon, Sableye, and a Brute Bonnet that literally spawned at the l
ast second of the sandwich's effects.
Now the big question is to cash in my chips now and put the two Roaring Moons up on HOME's GTS for what I'm looking for or keep at it and farm two more Shinies.
That's been known for a while and I'm not even sure it's what it's meant to be, or if it's even useful if it is, since the shrines are just basically at corners of a square. Like you could just overlay a square on the map and rotate it a bit and get one corner on each shrine, you don't need to duplicate the map and lay a bunch of extra shit over it.
This is honestly the first time I've ever heard of it, if it occurred in the past than it must've been low-key enough to not get noticed by the wider internet.
As to what it could mean, it's entirely possible that it's lore-based. It's mentioned in the Scarlet/VIolet Book that the geoglyph is either drawn by explorers from the time of the Paldean Empire or older and that they hold some form of meaning. I like to think that, considering how dangerous Area Zero is to the average person, the geoglyph is some form of warning about the deeper reaches of Area Zero or the shrines themselves.