You are like a child who is new to the language and watches everyone's spelling. Who cares? We pass that stage, we don't need to scrutinize everyone's word or sentence. Unless you want to be programmed like a robot to do perfect spelling every time.
Remember this: Perfect is for Boring, no challenge. When you are perfect, you are done. Nothing else to do or to think.
Come on, who cares? if his spelling is perfect all the time that means he must use auto spellcheck, copy and paste, he'll find it or he can also turn on auto spell correction. You don't need an expert to do a spell check. This day and age, a blind guy can do just as good. You pick on someone about spelling is very childish. You should go to the Doctor's office and shout at them.