Just five days ago Zynga CEO Mark Pincus said mobile subscriptions, among other scammy offers, would be removed from Zynga's popular Facebook and MySpace games. "We have also removed all mobile ads until we see any that offer clear user value," he said.So we were surprised yesterday to see a screen shot clearly showing a mobile subscription ad in a post on InsideSocialGames about the launch of a new Zynga game, FishVille.I went to the game to check myself, but those mobile ads weren't there. I assumed they had quickly been taken down, or there was some other reasonable explanation.They weren't taken down though. Or rather, they were, but just for me. Other users were still seeing the same mobile ads. And the filtering was clearly directed at me, since I logged in on the same IP address with a friends account and saw the ads. I held a laptop showing the ads up next to my screen that didn't show the ads and took a picture: