That is superficially an attractive proposition.coshhassessor said:He reckoned the subtext was you aren't employing an engineer for their skills with spelling and grammar
But the way I look on it is one of attitude. Of course, there are problems such as dyslexia which can affect someone's apparent literacy level, but usually poor spelling and grammar in forum posts and in emails and so on are simply due to lack of care.
If someone knows that they have a problem with spelling, then, flawed though it is, there is a spelling checker on this website. If that is found to be inadequate, then there is the option of preparing posts using a word processing application, and then pasting the corrected text in.
Like Softus, I also don't believe that someone intelligent and dedicated enough to acquire higher education qualifications is unable to cope with the rules of English grammar and punctuation.
So what posts full of egregious errors show is that the writer is someone who can't be bothered to do a proper job when writing. Someone who is not prepared to treat his readers, who are in a sense his customers, with respect by trying to do the best job that he can.
I am convinced that someone with attitudes like those is not the right sort of person to be employed as an engineer.