I still can't find much regarding the Rio issue apart of the first tweet by the faggy writer getting alot of malding comments in Japanese and englis/engrish (and he hid the replies too, fucking coward), so not much I can say about it.
I did however, decided to check around the ollie QRcode hijack thing and discovered that the guy who placed the rogue QR code bit more than what he could chew, as them ID folks (the ones on the Facebook group that shared the QR code in the first place) manages to trace at least two dumbass that orchestrated the whole shenanigans.
From what I gathered, the two guys are from a obscure/small ID-focused vtuber anti-discord server that has this hateboner toward HoloID (to the point of having a role specifically for hating ollie, along with your typical discord sperging stuff), who then have this funni idea to hijack the QR code. One guy decided to went through with it, but goes full PANIK when someone scanned the QR code mere moments after he placed it.
View attachment 3614512
(screenshot from said FB group's comments, don't know how to archive it, sorry)
Mad being the guy who placed the sticker while Kyoon probably the one that planned it or something. Mad would later tried to apologize by claiming that he was forced by Kyoon and one other person (goes by Pokka) and claimed he's underage or someshit. Translation of that post is basically:
"OH SHIT OH FUCK, FUCK ME AAAAAH,"
"the fuck's wrong with you"
"WHEN I STICK IT (the QR code), THE GUY WENT AND SCANNED IT. FUCKING HELL, I BAILED."
After all that stuff, the two guys left that server and switched their nickname (I believed the Kyoon one purged everything, since his FB was found due to usual bad opsec), the server that the two came from immediately washes their hands in case of retaliations while the facebook folks tried their best to find them again while laughing at them. Last I checked, Kyoon's discord account is unknown while Mad (now Denji) is still visible on a big Hololive fan discord and HoloID fan discord server that I happened to be in and thus sharing that whole "mutual server" thing.
Worth noting that not only there's CCTV like you said before, apparently someone on that facebook group might or might not see the guy who placed the sticker and thus has the physical description of the guy. Though honestly, even with all of this, the whole shebang might be forgotten in like, a couple of days, probably.