Merging pure and rune ess and fixing them at a price of, say, 120 each, and announcing that they will do it in two weeks time will have these effects; - People massively dump their pure essence in the GE to rapidly buy rune essence, hoping to get a bit of extra cash, will result in both pure and rune essence creeping closer to the 120 GP per piece limit... - Both rune and pure essence will be worth roughly the same (around 120) for a short period of time, and while Pure essence is not mined on P2P, rune essence is all of a sudden mined on F2P cuz it snow good profit... - Runecrafters might buy the now cheaper Pure ess to make P2P only runes, which causes those to fall in price as well... - The merge happens and the price is held steady at 120 GP for two days, after which it is allowed to fluctuate again... - The Rune essence price will sink to the pre-merge levels of around 40 each... The only people shafted in this is are the F2P RuneCrafters who will have to put their hobby on hold for two weeks, and those who still cling to large piles of Pure Essence (an item which has only a single purpose besides being held for merchanting)... I fail to see the harm in doing this... It would however hurt the players that bought huge quantity's of pure essence to raise Runecrafting. They would have spent millions on that pure essence, then they would see that they would have to sell it, but they could not. The markets would be flooded with pure essence, and no one would be buying it. This would (as you have said) cause pure essence to diminish in value soon making there investment a huge loss for them. If they bought it to train up runecrafting, why would they sell it? They would just keep on using it up to train runecrafting. Really this would only hurt P2P who mine essence for cash.