I judge people who put out professional ads with glaring misspellings. I'm not talking about small things, I'm talking about things that if you had bothered to hit the spell check button, it definitely would have caught the mistakes. I refuse to do business with people like that.
I'm pretty judgmental about grammar and spelling in general and have to fight the urge not to correct some people (like professors when they're writing on the board in class) but my grammar and spelling isn't perfect by any means so I try not to let it influence me too much.
Sorry if that wasn't as deep as religion and race and such