Adsense recently banned my site for "Policy Violation" for a post they approved a year ago.
Here is how it went down. TWO years ago I did a post about a UFC ring girl in Playboy on my MMA video site. Fair the post was inappropriate, my site was disabled. I deleted all pics in the post, appealed. After nitpicking my site they approved it, all is good.
"Thank you for making the requested changes to your site in order to comply with our policies. We have now re-enabled ad serving to your site."
Fast forward a year, the bot flags the SAME page again, unaltered. I appeal again this time, no your site is banned. WTF, same post.