Level jump potions = terrible idea, aside from being able to skip storyline on alts. Even with that incentive I'd rather level all my alts through storyline than have a level skip potion available. Things are just becoming more and more like Korean free to play MMOs. I've been around since 1.0 and I can say for the most part ARR is a vast improvement but lately the cash shop and free to play spectrum has been becoming more and more prominent. At first I was like "meh, nbd" when they added cash shop, but just as some had speculated, it is now having a snowball effect and turning in a bad direction. Level skip potions relate to this in the respect that they are, imo, a "pay-to-win" type of thing.