When an Rp dies Rill the first thing I look at is how much effort I put into it as the gm or the gm who ran it did. If it wasn't sufficient I blame the Gm. Then I look at roleplay itself and find the players lacking or just flat out dropping the rp at the drop of the hat then I blame the players. If it's the fault of neither it is time and or real life that ends the rp.

Sun Tzu once said, "If the orders are not clear then it is the fault of the general. If the orders are clear then it's the fault of the soldiers." to paraphrase that quote.