Okay, I know that when you're sms-ing you may want to cut down on the letters you use because there's a limited field. I personally still right out each word but that's just me.
However, when commenting on a blog, why on earth do you feel the need to abbreviate words.
Or is it just that you can't spell?
"hmmm just make it bigger n hollow add a couple of strings n u have a new hat"
Do they honestly not know how stupid they now look?