Cmonkey, I do get what you are saying. On a forum, it doesn't cost more if you spell out the words as they are commonly used. I can understand it a little when you have to pay for each text sent. It makes me work harder to decipher what is being said.
I have friends who use text-speak all the time and it is tiresome to read an entire email with numbers for letters, for example. This is how they also write when it comes to their paperwork and unfortunately, it causes a lowering of expectation from the bosses and work mates. They aren't taken seriously, and that is sad.