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[NotAllThere]

I attended a "code review" for a library that we're supplying to an external customer. A group of published API functions had Celsius spelt Celcius!

"Do you realise that if we give them that library they're going to think find out we're a bunch of fcking cowboys!" Went down well on the code review form...

FTFY (bit of an open goal).

Having spent a very long 18 months of my life testing a public facing website produced by our non-English speaking colleagues, I can explain this in that there are so many 'issues' which cause orders to fail, each one resulting in a game of defect ping poing, blame, retesting, failing again before eventually shouting at someone, that something like a wording change just doesn't seem worth the expenditure of energy.

On the other hand, I had to build a website in Swiss-German - no doubt I had similarly garbled messages

The thing is, customers do notice these things and that can cause you to lose sales.