Mingle2 - Free Online Dating
They base their findings on the use of the following words (and frequencies):
hell (6x); pain (5x); bitch (2x); gun (1x)
I would swear, though, that I have heard those words, and far worse, used in a dull PG movie. And, no, I'm not talking "PG-13," that wonky rating which came into vogue after I could get into R movies without being carded (ahem). Obviously, their standards for "mature audience" must fall squarely along: "This blog is a better soporific than Rozerem and Lunesta, perfect for insomniacs everywhere!" or suitable for your great Aunt Frannie, who was probably quite a naughty wit in her own time.