Bonus points if they complained about all the foreigners (French people) in Paris.

“Hey, here’s a useful thing that I recommend to people: <your work>”

It’s basically a compliment

But then you can’t inflate the numbers by putting a 3.7 volt battery in a power bank, listing the capacity in amp-hours and implying that you get that many amp-hours at the power bank’s 5V output voltage.

A guy looking for loose change for food being made to feel greedy by a multi-billion dollar corporation which wants to take the marketing credit for other people’s charity donations.