It would go the way of any other building society. If it is sitting on a pile of assets then the members will be induced to sell up and if there is no hope of carpet bagging them there’ll be very few members.
Just like the dublin golf clubs; the existing members will be tempted to run it in to the ground just to get a payout for the assets held by the not for profit organisation.
Are Irish people really that money obsessed? Maybe they are.
The UK still has a decent number of functioning and viable building societies, even after the post bubble bust period of amalgamations and forced takeovers.
The Yorkshire recently managed to buy back government debt holdings in the society:
Maybe you could take away the financial incentive members might have to demutualise by enshrining in the organisation’s constitution that any proceeds from such would go to charity or government.
Of course their are some pitfalls to be avoided but on principal a very good option. Surely their must be some principalled people willing to invest and run them. Slow and steady growth not pyrotechnics is needed…