Which is why this kind of feature is useful. I'm British and I live and work in the USA. Having software prompt me that the word I use for cigarettes may not be interpreted the same way here provides me real value.
If you are not, you are using a tool that (seemingly) is pushing US language norms on other users of the English language.
Further, because the app could be pushing you to not use those words that are perfectly suitable in your culture. Overtime you may find yourself not using them in every day which would be gradually changing your unique culture.
Maybe there is some functionality here that I am missing that actually takes audience into account. But from what I can tell from the outside this is pushing one English ideal onto the world.
Even thirty years ago there were jokes about how you could go to Australia and understand every word they said and not understand what was said at all. That's decreasing each year.
100 years ago you could recognize where in the US someone was from very easily; now we all speak variations of "Californian".