Also curious about the site, bump

I think there are two websites you may be looking for: 爱发电 and 闲鱼.
爱发电（ https://afdian.com/ ）It is a website similar to Gumroad and Booth, but there are very few VRCHAT creators on this website. Fortunately, all the content is original.
闲鱼（ https://www.goofish.com/ ）It is an idle item trading platform, and I don't know when this website developed the industry of selling VRCHAT assets. If you want to buy things on 闲鱼 now, you need to register an account with a Chinese phone number to make the purchase. There are many VRC avatar assets here, but almost all of them are assets of other creators, and they are all sold on 闲鱼 without the consent of other authors. It is difficult to find creators of original assets here, and it may also encounter merchants without credibility.
Anyway, if you have the chance, you can take a look. Wishing you a wonderful day.

@CamelCompact @Luhvv