I write technical documents currently for a lab and I am a stickler for spelling, grammar, etc... However I see the true core of this issue being laziness, coupled with new urban street slang. I made a couple of younger friends in my last year of college and when I would both talk with them, and/or get emails from them, they were riddled with this type of shite (IMO).
Bottom line is that this is not a normal forum. Members here are expected to be above average in terms of both attitude and etiquette. This is not myspace.com with pictures of the members in sideways baseball caps and XXXXXL pants. This is a site for intelligent gear heads no matter what age.
To be honest what one wears makes no difference to me, but they way one carries themselves in a conversation be-it verbal or written makes a huge impression.
I am with Mike C... if a post is full of the reedickulows slang I just pass it by... Mike (ON3GO) will answer them soon enough anyway!!