God no. I try to:
A.make my posts readable and
2.try not to embarrass myself too much
I normally spellcheck everypost and preview/reread it at least once (if not 5 times). To do any less would seem to me to be counterproductive. If you're going to bother posting, why not make sure it's as readable and coherent as you reasonably can? If I'm reading a post and the person obviously didn't care all that much what it ended up looking like, why should I care about what they are trying to say?
...but I don't understand being a douche about minor spelling and grammar errors, especially if it doesn't really screw up the flow and it's obvious what the person meant. That's actually much more annoying. A smart person claiming they don't know what a poster (and it happens in real life too) meant when it's OBVIOUS what they were trying to say to everybody else.
And yet I recall you throwing a fit about opebo's adjectives as nouns thing...
I suppose it's possible, but I certainly don't remember. Remember when you said black markets were free markets?