I've always considered runescape to be a casual game, not a competitive game. When I think of games that take "skill" I automatically think of quake, or counter strike 1.6 (source is lawls) or warsaw even. All these games take skill and tactics that some people can never achieve after years of playing. Especially games like wc3 and starcraft. Any game that holds competitions for money are worthy of being called a game that takes skill. Runescape is simply a game designed for people to grind. You're never really developing your game to make you a more elite/skilled player, you're more so just racking up experience. Back when I played cs 1.6 competitively, you could automatically spot who was better or worse than you just by the way they played whereas in RS the "better" players stand out because they have a paper hat on their head or are level 138 combat.