This is unfortunately not possible, because when the pool is closed then there is a responsibility occurs to pool members. And if pool members paid a fee to join to pool, then there should be a refund from the pool owner. We have to think from every different angle. Pool owner can sell his miners and quit anyway, then fee is paid to system not to pool owner.
If this "ghost-pool" have a fee of 0%, he will suck all the aviable hashrate of the system, the other pools will bleed out and nobody have to pay for it?
And as Bonus, the "ghost pool" also get randomly fresh 10Gh miners from the system.
If the pool have a "join to pool fee", and the pool go "bankrupt" then the members simply join the wrong pool and are the losers....like in real life.
But thats a one time punishment and does not affect the other pool owners or distorts the whole game.
Looks not funny for others.....especially, since we can expect more of such "ghost pools" in the future.
There is no such thing as "ghost-pool". So all your assumptions are invalid.
On the contrary, we are trying to avoid a ghost-pool. The purpose is, if pool owner quits the game nothing should change for the pool members. They will continue to earn as if they have a pool owner, and they will continue to pay the pool fee as if they have pool owner. But since they do not have a pool owner, they will pay to the game.
To make it more clear, nothing changes in terms of earnings and fees for the pool members if their pool creator quits the game. They do not have any disadvantage or advantage against other pools. We think this is the most fair system.