Hello, I just wanted to ask about corrections or explanations given in relation with the native language. I am not a teacher, and because of that I don't know if you really appreciate that the corrections reflect the minimum errors, or all the possibilities of writing the message. I say that, because sometimes there are different possibilities of writing a sentence, and I don't know if it's really necessary to give all of them.
I am just asking because I'm not myself a prescriptivist, but I want to try to give useful corrections or explanations.