LOL some pretty hilarious comments here.
In all seriousness, though, advanced SEO could also mean knowing when not to overstep the boundaries set by search engines and other "powers that be", when seeking some short-term gain. Seeing the bigger picture, working intelligently on all aspects of the website (content, graphic, code, plugins...) and setting them so that the sum of their effect work for you and not against you is a pretty advanced approach.
So, it's knowing all the tricks and nuances but also working with all the tools at your disposal.