And now they are buying bitcoin.
I knew the Web was going to be big when people who could not be troubled to learn what a paragraph style is in Word were hanging on my every word, taking notes, and buying books about how to install a 3rd party IP stack in Windows.
There's a difference between the UPS guy having an opinion about something and going out of his way to learn about something with a fairly steep learning curve.
The thing about money and markets is it all relative(%).
Whenever talking on these topics people revert to absolute($) comparisons, this is where most analysis breaks.
I am not arguing or commenting on bitcoin success, just that your mention of "order of magnitude" sounds like an absolute value.
However, in this case, the discussion were about the "popularity", or the "reach" of bitcoin. The underlying assumption (by me) is that absolute value would strongly correlate with the number of people knowing about bitcoin, hence the absolute number remark.