Ah, you're right. A broad, contrarian dismissal is exactly the way you should respond in any conversation related to CPI/inflation.
By the way, that coffee is $9. Sorry, Brazil tariffs and everything else - you understand.
I think a broad, contrarian dismissal of a broad, contrarian dismissal of a metric is, while unhelpful, not inappropriate.
There are legitimate complaints with CPI. The Reddit variety is mostly statistical illiteracy.
> that coffee is $9
Lots of coffee data [1]. One I think tracks a cup in a city is up 17% YoY.
[1] https://data.bls.gov/timeseries/APU0000717311&series_id=CUUR...