there is no way the IRS will allow people to avoid paying taxes using this trick.
It's not a trick and it doesn't "avoid" taxes as the post explains. You will still pay the same taxes, just not in the form of every $1 transaction being a taxable event.
if this really catches up i am sure they will clarify that the determining exchange rate for tax purposes is the median of all inputs or something of that sort.
So now you are arguing on the basis of what you think the IRS will do in the future, and you expect anyone to pay the slightest attention to your baseless speculation? Good luck with that.
Identifying lots on capital gains transactions has been done for decades in amounts totaling billions or more likely trillions of dollars (by institutional investors). Closing this non-loophope doesn't appear to be a high priority for the IRS.
Moreover, even if buying a cup of coffee became a taxable event, who cares? This is not 1970. We have this these things called computers, smartphones, etc. They are good at bookkeeping.
This thread is pointless.