I don't mind pedants, but I'm not one as I make far to many mistakes (some deliberate, some not).
I was sitting behind a Driving Instructor the other day and very nearly rammed him though (extreme admittedly) as across his rear end he had his 'mission statement' which read:
"Renember, you was a learner once. Back off!"
I honestly don't mind typos and errors on here, but in a professional environment it makes my toes curl. Saying that, for some reason Spell Check gets easily confused, the grammar check is less than useless and in my role (and therefore my colleagues' roles) there is not always enough time to use a dictionary, especially if you think you've got it right.
My DH is an articulate and intelligent man, his spelling and grammar could be better. We all have different strengths I suppose.
I actually find the words that SHOULD be easy are the really tricky buggers. Separately, descreet (is that even right?), necessary etc., the vowels confuse me. Especially if you account for local accents, and different spoken pronounciation, inflection and emphasis. SepERately begins to sound like a logical and understandable error.