Oh I know, I also tried the "Peek" feature: used for home, work and my university (it was over a decade ago I graduated). It didn't move the needle. Very disturbing.
Btw, I'm in Europe, so all of the comments I saw were in English, as in American English, so I'm guessing us Europeans aren't getting the best of the US. This is not data, just an observation.
Depends. My teachers (in Germany) all used British English, but allowed both in tests (as long as you stayed somewhat consistent). For people who don't just learn English in school it obviously varies with the different influences and often is a wild mix.
I'm not saying this is 100% the case in every school. The school I went to was British English, for sure other schools teach in American English, as I'm sure there are plenty of Americans teaching around Europe. I'm just talking from experience/observation.
Btw, I'm in Europe, so all of the comments I saw were in English, as in American English, so I'm guessing us Europeans aren't getting the best of the US. This is not data, just an observation.