4 posts with 53 spelling errors. Yes, I counted them, but I'm no grammarian, let alone a Grammar Nazi. http://www.collegehumor.com/video/6060107/grammar-nazis
I opted not to site any of the posts, but would like to bring one error to attention. I think this PR campaign should start with always capitalizing Bitcoin when used as a proper noun.
Achtung!
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Dollar is not capitalised in normal use. Maybe it should be capitalised when used as a subject, but not as a currency unit. As in, "I just paid 1.7 bitcoins (or BTC) for a book about Bitcoin."