Also @@Adam if you want "Pure Worlds" try to get some info from Jagex.
Tweet this "@JagexLottie Could we see how many pures (30 Defence & under w/ 60+strength & range) are in the game?"
She does Analytics & Data for OSRS.
With the information you get you can from that, make a Reddit thread asking for Pure worlds (1-30 Defence) if the # of accounts is higher (which it should be) than accounts with 2K total (there are 10861 with 2K total), how the world would operate (Active Wildy, Active Clanwars, etc)