I think we'll just have to disagree. If you look at the equivalent of some of these bulletin boards in Australia, e.g. ozbargain and read some of the comments its pretty clear to me that many people do not have any real idea of a fair price for many goods and services, and jump on deals because they seem like a great deal.I think given the facts of the case, the total pax falling into that category = the total number of tickets sold. The CTA was able to look at the timing of the release of the fare on the blogs, and the timing of the tickets sold. The two perfectly matched. IIRC not a single ticket had been sold on that route prior to the fare being announced on bulletin boards and blogs, and all tickets sold for that route were sold within ~24 hours. And not a ticket since.
I think it is pretty fair to say almost everyone purchasing the fare had a pretty good idea it was a mistake ($150 plus tax/fuel for Singapore Airlines Suites and Swiss First class from Asia to Canada).
My view is that your extrapolating your own knowledge (and that of other AFF members) of what is a right price to others, many people (who fly never or infrequently) would not have a clue what the "right" price is to xx_ until they spend some time investigating but are still susceptible to people suggesting a particular price is a steal. Indeed many retailers rely on this with their "sales".