I speak five different languages but no one understands a word I say.
So yes, be kind.
We should be considerate of everyone.
“We do not believe any group of men adequate enough or wise enough to operate without scrutiny or without criticism. We know that the only way to avoid error is to detect it, that the only way to detect it is to be free to inquire. We know that in secrecy error undetected will flourish and subvert”. – J Robert Oppenheimer.
The first 40 seconds....
Fiddling While Rome Burns
Carthago Delenda Est
"I used to roll the dice; see the fear in my enemies' eyes... listen as the crowd would sing, 'now the old king is dead, Long Live the King.'.."
To illustrate how stupid the English language is, and why it's so godamned difficult to learn, I present this:
I love the NSA. It's like having a secret fan-base you will never see, but they're there, watching everything you write and it makes me feel all warm and fuzzy inside knowing that I may be some person's only form of unconstitutional entertainment one night.
Imo, you should be considerate to everyone in general, not based on their mastery of the English language. That being said, I don't think it's our responsibility to learn another language, or supply interpreters, just because someone else can't speak the language. If someone comes here, it is their responsibility to learn how to communicate for maximum personal benefit. If they don't, I don't care, but it's their own problem to take care of, not ours collectively.
"God is the name by which I designate all things which cross my path violently and recklessly, all things which alter my plans and intentions, and change the course of my life, for better or for worse."
-C G Jung