Spelling doesn't matter on a message board. You don't get on someone's case for misspelling during a text message or an instant message do you?
In this day and age there is a huge difference between typing something in a social setting like a text message email or an instant message or yes a message board. And, typing something that is formal. A message board falls under the context of things that are more social or have to do with interaction on a computer rather then let's say an essay that your submitting for a class.
If your talking to your friends no one really is going to care or jump on you if you don't use 100 per cent proper english or if you use slang. However, if your in a very formal setting you should try to avoid things like slang.
Considering that a message board is an online version of a social setting I don't go out of my way to spell bad. But, on the same token I don't go out of my way to fully edit it either.
And, I was making arguments based on what the law says for something that is a parody or a spoof. I think you missed the part where I said I understand why the people at Don't Quit your night job aren't posting the video but I disagree with them and if they wanted to they would have every right.
"If you try to shag my husband while I am still alive, I will shove the art of motorcycle maintenance up your rancid little Cu**. That's a good dear"
Tom Stoppard's Rock N Roll