How do you tell the difference?
I'm actually not sure there's much of one, if any at all. I like things done right. I especially like words spelled right, sentences structured right and paragraphs punctuated right. (Okay, it should probably be "properly" instead of "right" those last three times, but I'm going for an echo of the first "right.")
Yes, I review text messages and emails before I send them to catch typos. I don't rely on spell check in my manuscripts because I don't entirely trust it. I do, however, trust the spelling ability that got me in more spelling bees than I ever wanted to be in as a kid.
I've actually copy-edited magazines, newspapers and published books -- not because I'm getting paid for it, but because it drives me nuts to see mistakes go uncorrected.I spent hours last week removing a stupid formatting error that showed up in my manuscript. I tried to leave it there and continue writing. I just couldn't do it. I hate it when I make a typo or leave out a word on Facebook or Twitter.
I don't consider myself a perfectionist, though. (If you could see my house . . .) I don't like to think of myself as a nitpicker, either.
I just like to think I'm a writer.