I cringe when I see these grammatical errors too!! Why can't people get it right?!
"Quiet" and "quite" are not the same word :)
Some people are unable to get it right due to difficulties such as dyslexia etc and seeing thing's like this can be very hurtful and upsetting! You are putting people down when most of the time they are trying their best!
I'm so sorry for hurting you, that was never my intention. These grammar errors are so prevalent that I seriously doubt there are that many people with dyslexia. Obviously if you have dyslexia it's not your fault. If you don't ... well, I feel like grammar is worth making an effort to learn.