No idea, majority of RS3 players are max/comp/trim.. 3 main goals as why majority of rs3 still plays. Other majority are still addicted to gambling from the dicing era couple years ago and stake.
Don't even know if anyone pks nowadays letalone pures. Might aswell log into the PvP world and check it out for yourself though. But I don't see anyone making new pures for rs3. Majority of pks and what not went to 07.