"Correction on my post 119. The word vvery should be very and snooby should be snobby!"
I'm going to now judge you on your lack of typing skills. How dare you insult this thread with your lack of perfect proof-reading. I'll forgive you if you're wearing something I judge to be "appropriate". wink wink :)
Only pajamas accepted.
I know you were trying to be funny, but you have inadvertently brought up an important point. Just as people judge you by the way you dress, they also judge you by the way you write and speak. Occasional errors are excusable, but consistent misuse of the language damages hampers your ability to communicate with others.
A colleague of mine had a teaching assistant whose e-mail to the students was always full of errors in spelling, punctuation, and grammar. For instance, he would not bother to capitalize the first word of a sentence or put a period at the end of a sentence. He steadfastly maintained that such things are unimportant -- the reader could figure out what he meant.
However, it is not true that the reader can always figure out what was meant. Nor should he have to. Communication is difficult enough; frequent errors tend to draw attention to themselves at the expense of the message. The writer who insists that such errors do not matter can reasonably be accused of showing contempt for his reader.
Likewise with clothing. One of the purposes of clothing is to communicate. Those who dress inappropriately for the occasion tend to draw draw attention to themselves. In some cases, they can reasonably be accused of showing contempt for others who are present.