>Just stop joining group buys and the problem will solve itself over time.

Then those of us who accept and understand the situation will just carry on running and using them without having to put up with people moaning endlessly about them.

GBs are what made this hobby what it is. Without them, it will just become like the gaming industry. Lots of identical, low risk products that all look the same. The fact that the GB model allows risk taking is what generates the variety and uniqueness of product that drew you here in the first instance, and now you want to kill it because you can't buy stuff with next day delivery?