It's amazing to see such a consensus on FT. Me, too.
Occasionally, I run across hotels that are even more blatant in their capacity to insult the customer...
I can accept that "Room Service" menus generally list prices higher than those for the same items in the hotel's dining room/coffee shop, but I am insulted when the Room Service menu comes with another bit of chiseling....a "Charge for Inroom Dining"....seen more and more.
Then there's this newly magic 22%. Oh, where, oh where did 18% go? Lost in the same cloud as 20%, I guess....
No wonder Europeans find our "tipping" customs ridiculous. They are.