If this is the simulated world of the thought experiment (abstract simulation), and opting-out doesn’t change the abstract simulation, then the opting-out procedure did wake you up in reality, but the instance within the abstract simulation who wrote the parent comment has no way of noticing that. The concrete simulation might’ve ended, but that only matters for reality of the abstract simulation, not its content.
If this is the simulated world of the thought experiment (abstract simulation), and opting-out doesn’t change the abstract simulation, then the opting-out procedure did wake you up in reality, but the instance within the abstract simulation who wrote the parent comment has no way of noticing that. The concrete simulation might’ve ended, but that only matters for reality of the abstract simulation, not its content.