I suppose I'd better add my two cents' worth - says he, attempting to lighten the atmosphere.
Actually, some of us here in Aus still say
two bob's worth, even though we dropped our shillings/bobs before the Brits did. That's an order of magnitude more valuable than two cents' worth, by the way.
I myself raised one aspect of currency terms - the units that had been superseded by the euro - a couple of years ago, in
this thread. My post started a discussion that went for four pages, but I don't think anyone responded to the question about monetary terms. In that post, talking about the general issue of what makes a common word, I said:
I don't think the common word list should be reduced to the lowest common denominator. My idea of it is not so much words that everybody knows, as words that a regular word game player is fairly likely to know.
This remains more or less my idea of what we should be aiming at. In agreeing that
zeta should be classed as common, I said, "Greek letters are used to varying degrees in English - ranging from
delta and
iota to the likes of
upsilon. But it would be difficult to draw a line, and I think it's reasonable to consider that players will have heard of all of them." There are only fourteen Greek letters with names (in our alphabet) of four or more letters, so it was easy enough to verify that they all look fairly familiar.
I doubt that there would be any objective test that would reliably identify the monetary terms that players are likely to have heard of. And if there did happen to be a reliable test based on GDP or some other criterion, it would still need to be verified by what is ultimately a subjective assessment, so what would we have gained?
And this is before we even start to consider complications such as obsolete currencies, names for subdivisions of the major unit (centavos, etc), alternate names (China's yuan and renminbi), slang and colloquial terms, names of coins (dime) and words that also have non-monetary meanings (the Vietnamese dong).
There probably are some questionable classifications of monetary unit words, but I think each of them has to be reviewed on its merits.
Regarding TRex's comments about "civil discourse", I have to say that I can't see anything uncivil about RM's posts. She was trying to explore the consequences of TRex's suggestions, as she understood them.