man i would to see that 4chan thread, that sounds like a blast.
Doing some digging around, sadly the archives for /vp/ are borked, so you won't get to see the whole experience.
Here is the original threads, in all their glory(most images missing):
Part 1 -
https://archive.palanq.win/vp/thread/35654833
Part 2 -
https://archive.palanq.win/vp/thread/35658699
Found an archive with images, but it doesn't go as far back as 2018. Here is some image results:
https://arch.b4k.co/vp/search/image/A9cDeRcwiixnnmwBhWyLQw/ - (an example of MANY edits made to "Youngster Zoey", the trooned out youngster model from ORAS I think). Note the "Shadman" edit on the original thread that I sadly cannot find
https://arch.b4k.co/vp/search/image/ZH6XEpObizoHof8Ni63IpA/ - Apparently three times the fangame has been mentioned in the 2020s
https://arch.b4k.co/vp/search/image/_a8ZoBCW6hWmlQ_KXyooIQ/ - Gay couple out on a picnic
https://arch.b4k.co/vp/search/image/Fhjd20F2qkz5nT9wstL7tg/ - What appears to be a gay wedding, I remember people joking that the two couples here or in the other link are Youngster Zoey's two gay dads
https://arch.b4k.co/vp/search/image/dLy6LkMgovKdbD3U3Bb3wg/ - Image from romhack general that mocks Phoenix Rising
https://arch.b4k.co/vp/search/image/Ixzt-ECjysShH-N484thFg/ - Original Youngster Zoey picture for reference
Not found, sadly: Images of Gav(Dev/Lead of the Project) and all the various hilarious screencaps from their discord, including them admitting to shilling the game on /vp/, calling 4channers a "bunch of pissy manbabies", tranny and LGBT circlejerking as well as Gav's reaction to being doxed in the thread in real time. Note the similarities to Fallout Frontier with the 7+ year development period, how the devs shilled the project and then cried when 4chan mocked them back.
I'm sure someone can clue you in on the drama or the missing images if you go on /vp/
Edit: Forgot to mention that jannies got really pissy after the devs were bullied at a certain point and started banning people mocking the devs or the game. Jannies are trannies, what else is new? Either way, once people stopped taking the piss or were banned for it, the game fizzled out and nobody talks about it anymore except for a quick chuckle