I wonder about the influence of the language. I regularly watch videos in English, Spanish (my mother language), and Japanese (my girlfriend's language).

English-speaking channels are usually more "polite" in the way they speak, while Spanish-speaking channels are way crazier, using expressions that no American would dare to use xD

Regarding Japanese, I don't understand enough to have a judgement, but Japanese people are usually very careful and non-confrontational.