1. In ghost mode non of your skills/spells should work on someone except you.
EXAMPLE: Why in God's name you are able to recall your friend while you are ghost? Are you ghost or what?
Second part is about unghosting.
Yea I know solace's coders are a bit lazy people so unghosting after attack any mob has been done to prevent abusing ghost mob for getting gears

But it gives some problems in pk aspect.. for example:
I fight with two enemies on reraid, I kill one. Now I am in trouble:
1. I can return all eq I do not need and in a second I will have to face two dressed enemies again(so what was point to kill one?)
2. I can full loot to make my reraid more easy

Since 2. is not choice we all want to see I suggest the next thing. You are unable to unghost untill ghost timer is gone (as for me I would let attack of the inner guard of any cabal to unghost.). And to deal with ubusing ghost mode vs mobs.. any mob you attacked in ghost state will hunt you as if you are not ghost.