Studies have shown that the more polite a society, the more seething rage develops inside it.
Actually, studies have shown that those who truly control their temper are less likely to get angry and less likely to suffer the negative consequences of anger (And this was not the ones that are inflicted by others, but the negative changes which happen to the body as a result of anger).
So, both the comment you replied to and the facts you recollect appear to be true...one of the places where it was impractical to harvest natural ice was, as the comment you replied to stated, Australia. Southern California it turns out was supplied by natural ice from Alaska.
The conspiracy theories which have been created to explain it fail to do so. The motivation they ascribe to those making the hard to explain actions are believable, but it is hard to believe that the actions taken would have the desired results.
That poster asked the question, how does a "boutique" vendor compete once they have turned their product into a commodity? They are going to discover they have the same problem which Schick and Gillette have. They both spent a lot of time and money convincing men to buy disposable razors. Then they discovered that it was hard to compete when a razor was something someone bought and threw away after a week or two. They are now spending large amounts of money to convince people to buy their razors with replaceable blades.
I would recommend that you reword your statement to "...were never intentionally stocked..."
The word "stocked" contains within it the connotation of being done intentionally. Since, the general theory about how fish get into a landlocked body of water is that from time to time some fish eggs stick to the legs of waterfowl and rinse off/hatch in a different body of water. I have never heard that referred to as being stocked.