katakana - https://en.wikipedia.org/wiki/Katakana
As for stereotyping… maybe! But isn't "laughing a proposal out of a room" a stereotype as well?
How about we stop assuming mockery just because it might seem plausible and instead we lean toward "no offense intended" by default?
In other cases, the English spelling is still dominant, so using a back-transliterated katakana spelling (e.g. "Rabu Hoteru" instead of "Love Hotel") would be just weird.
[0] https://books.google.com/ngrams/graph?content=salary+man%2Cs...
We don't tend to use salaryman at all. There's white-collar, businessman etc. By contrast sarariman had been popularly coined in the 90s by the Japanese.
But it isn't. How about we stop assuming offense by default and instead we try to expect that other people are as reasonable as we are? For that matter, that one is in the guidelines here.
If some Dutch people bring back Oreos as souvenirs from the US and call them "cookies" instead of "koekjes", are they adopting a cringeworthy faux-American accent? Making fun of how English butchers their language? Or just calling them the way Americans do, without any further judgement?