Long time lurker, first time poster. Now seems to be an interesting time to do this AMA :). Hope I can answer all your China / Chinese related questions.
Currently working in software related area, but I had experiences in different industries across different disciplines, and recently thinking about starting an aquaculture business.
Of course, I'm not representing any groups, and all my answers will be my personal opinions.
Edit: Just before the post is locked, I changed the title from Chinese Australian to Australian, I know in Oz we care more about country of citizenship than race, and I like it :) (In the US it’s a bit different)
I didn’t do “daigou” myself, and I agree the activity of rush buying baby formulas doesn’t look decent.
But I don’t think it’s a big problem, based on what I read on ozb, woolworths normally always had stock in the back if you ask (yeah, can be a problem for people who doesn’t know). On the other hand it positively contributed to retail and logistics industries, overall maybe not that bad as it looks.
Eh, yeah, I remember in some videos the daigou behaved aggressively and lost all his/her manners, that was indeed a big problem.
Edit: yes bypassing the limit is not acceptable.