It seems to be related to an incident in which their fan art became a meme on Chinese social media. If you know Chinese, you can find more information about it here. https://zh.moegirl.org.cn/哥，咱家有钱了
Zawawa deleted their newest Pixiv post, probably because people were reposting the pics again (including here) despite telling people not to in their profile.
@Akesawa, thanks for the link.
It looks like some Chinese people were chatting about bank deposit and how wealthy one of them is, and even added a pic of their credit card and as you can see, their profile pic is Zawawa’s drawing.
