Sorry guys, but its about time you realised.. pvp cave is dead and ruined :'(
Only way for us to get it back is to shout out to the devs and ask them for an established area for such a thing. And no, i dont think arena is enough..
A safe social pvp zone is required.
There is too many gankers, jumpers and unlearned players in the cave these days. And when you try to maintain order, you end up being called the ganker.
People are using pots ( health, defence ect ).
People are jumping and ganking players
People are not giving the required signals.
These are the problems we will always face.