I think that most of the India(n) named users are actually from Canada and India, and UK. I'm in Australia, my brother likes to read the articles in TH but not participate even though he is quite adept with computers. UK is English, Australians do speak a type of "English"
and English is the predominant language in India particularly with students (or of that age) to whom would be the ones viewing posts more than actually participating, either asking or answering.
I actually had (have) an account with the US site but it was not a good format and there was a distinct echo around it
so I kept this account where all the action is happening (most times)...