That's really not on. We've moved on here from turning our noses up at mis-spellings, and rightly so. There are quite a few people on Urban (I don't know if
emanymton is one) who have disclosed having things like dyslexia, and we ought not to be shaming people for conditions they have no control over.
I've always been very particular about spelling and grammar, and in the past have also been prone to being more dismissive of people who "can't spell". But experience - not least a TIA which has had a small impact on my spelling - has taught me otherwise. I cannot recommend the TIA route, however.