Pking at curseds used to be a good way of collecting energies for inventor/charges.
When skillers used to whine about getting pked, I'd tell them that my method of collecting energies was more efficient than theirs
Now the only things that drop energies there are bots and a tiny handful of players that aren't high enough inventor level to make a div-o-matic. And the bots bank when their number of collected energies exceeds 500 (kill a bot that's on the way back to the bank if you need verification of that), so you now get so few energies that its hardly worth pking there. Prior to div-o-matic you'd find skillers there with like 5k or so, energies on them. Used to be able to get 20k to 30k energies per hour, comfortably.