I was educated in a time when ALL ....teachers graded your punctuation, spelling etc, not just English teachers.....
I encountered that in High School and it kept my grades down by just enough to keep me out of the top 10%. That means something in Texas.
I have never been able to spell properly because I was never taught how. Phonics were being introduced into grade school when I was in the 2nd grade. It was taught in 2nd and 3d then you got the classical learnin. My father moved us to a rural town in southern Ohio when I was in the 4th grade. That school taught phonics in the 4th and 5th.
So I can use letters to form any word you want and it will be pronounced correctly but we all know the English language doesn't work that way.
Spell Check is my 4th grade teacher! What it doesn't point out is that you may have used the wrong word spelled correctly.
Ken