I have been playing around with some ads on Facebook, and was a bit surprised when I had a couple rejected. I thought I would republish them here for your enjoyment. Their policies are rather strict, including "no slang words". It is funny, because I am just trying to increase the click through rate, which increases their revenue.
"The text of this ad contains excessive or incorrect capitalization. All ads must use appropriate, grammatically correct capitalization. The title of your ad, as well as the first word in each sentence, must begin with a capital letter. Lastly, all proper nouns and acronyms should be capitalized. As per section 4 of Facebook's Advertising Guidelines, all ads should include standard and proper capitalization."