Never used it before until I signed up 3 days ago. I wasn't getting any likes despite my thousands of visits per day. So when I tried to experiment myself, I see that whenever like jacker or really whenever anybody clicks the like button on the website, there is a "confirm" box that pops up. A user has to click that before the like is applied to your Facebook page. So, in essence, Like Jacker doesn't really work right now because FB seems to have patched it. Anyone have any like hackers that actually work?