Who's been paid by informative post?

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Usually before I join a site, I go on google or yahoo and search for a payment proof of the site I want to join. But I didn't do that for informative post. Well actually I did, but not before signing up. When I did look it up, I didn't find any because "informative post" is quite a broad tag. The only things I saw were comments like "thanks for this very informative post". Now that didn't help, did it? So all I want to know is whether anyone has been paid by them. Please answer if you've been paid (or if you know anyone who's been paid)!!