I've been holding back comments on this thread, but I can't anymore.
If you have new skis, they will de-tune themselves over time. Before this post I've always wanted to come in here skiierman style all bitching and flaming about people who just plain s uck, but that nasty picture and someone pointing out that not detuning edges may also pull the edge out of the ski kept me from commenting because I thought they were semi-valid points.
..but fuck that. If you go to the shop and ask to have your edges detuned, they should give you a weird look. I've never detuned my edges on any of my 4 pairs of skis since I started skiing park, and I fucking suck. I still have all my edges for the most part, and I may catch an edge from time to time but it's just a reminder that YOU'RE DOING IT WRONG
Detuning edges is just a bandaid fix for poor form. If you're catching your edges on rails, it's your form not the edges. Plain and simple. Learn it. STOP THE BONER SLIDES