Curious that the editor specifies American English, but not Brazilian Portuguese
It's not very understandable in asynchronous written form. But the Portuguese have much more trouble understanding Brazilians than the other way around.
> But the Portuguese have much more trouble understanding Brazilians
I never had that issue. Some expressions don't translate but most are understandable just fine. Also with the spread of Brazilian novelas and music in Portugal, they're not only getting more familiar but are even starting to adopt a lot of our jargon.