What do you say to someone on the line "it's got nothing to do with being dyslexic. There are spell checks which will redlight the word and tell you it's WRONG.. so I believe in finding the RIGHT way... It's the best way to learn a language and it's nuances.."?
Or inform them that ".." is not valid punctuation (only ".", or "…"), that "redlight" doesn't exist, that "to red light" hardly is a well-known verb, and that visibly a spell-checker will not catch that "its" (no apostrophe) should be the valid possessive determiner in "a language and it's nuances"?
Well, first, what's your intention behind the rebuke?