Full list of accounts (go check out his project for more details, https://scratch.mit.edu/projects/797273971):
-PinPoint- and alt, creator of #1 trending game “Merge” - https://scratch.mit.edu/users/-PinPoint-/
VectorHex, participant in OS Wars 4, winner of Palette Picker and host of Palette Picker 2 - https://scratch.mit.edu/users/vectorhex/
Vectorii and alt, main account and prolific designer with dozens of designs and games, host for many competitions - https://scratch.mit.edu/users/Vectorii
Opels, collaborative account and Blue OS 7 and Green OS 8 participant https://scratch.mit.edu/users/opels/
Wirem, popular logo design account and landscape designer - https://scratch.mit.edu/users/Wirem/
PREVlA, famous logo design account previously revealed to be Vect - https://scratch.mit.edu/users/PREVlA/
Softec + alt, mysterious UI designer and Brand Battle 1 finalist - https://scratch.mit.edu/users/Softec/
aeroic, Green OS 7 participant and legendary UI design lead - https://scratch.mit.edu/users/aeroic/
Rasterer, legendary simplistic landscape designer with 50 shared designs - https://scratch.mit.edu/users/Rasterer/
Flua, Pursue Palette 5 winner - https://scratch.mit.edu/users/Flua
bIend, logo designer and Brand Battle 5 finalist - https://scratch.mit.edu/users/bIend/
So Vectorii just did a reveal project and it turns out they were Wirem, Softec, aeroic, biend, Rasterer, and Flua. I’m positively amazed but I knew only one designer had the same quality of work on all of these accounts so I’m not surprised
i know pretty much nothing about the scratch design community so take this with a grain of salt, but this kind of makes me wonder about how big it actually is if one person has all these accounts