I have to admit, though I realize that it is partially an effect of the medium which we are using, the posts with extreme grammatical, paragraph, spelling, and typographical errors do irk me. Perhaps I am old fashioned, but in my opinion, we should be treating electronic communication in the same way that we treat other forms of communication. The way you portray yourself through electronic means are indicative of the way you would present yourself in a written document – or at least that’s the attitude I use.
Not to mention that it is extremely difficult to carry on a semi-intelligent conversation when you can’t understand what someone else is trying to say without taking it to a cryptologist.