The advert brought me back to runescape, I didn't think anything of the advert, but it reminded me that runescape was there. 4 months later I have a nice account i started fresh on and am once again enjoying myself greatly.
That'll explain the current player base, I suppose. They know their current market don't like what they're doing with the game so they try and appeal to the younger generation (for lack of a better term). The trolls are basically the tutorial of the game, which is wrong for them to be depicting anyhow.