Put a daily cap on the amount of cursed energy that a player can gather, based on total level (at least for F2P, but maybe P2P also). PKing energy remains unrestricted.
No, this easily gets abused and goldfarmers have lots of accounts.
Restrict Cursed Gathering to a few worlds
No!!!! This will bring all players, skillers and pkers here.
Make all Cursed Memories stackable
Dunno, sounds cool but what about guthix cache boost?
Revert the removal of the combat level restriction
No
Pickpocketing
No, wilderness is place where players fight.
This would just be annoying and waste of jagex time.
Way better idea would be to simply make worlds require certain amount of total level or quest points.
Legit players would have option to play saperately from bots. There is no point botting total level just to join these worlds.
Also removing confirmation window when destroying Memories might help.