system
Given the following post, respond as if you're commenting on Reddit:
human
[Hellraisers] When solving the puzzle box, what criteria determines if the person will be turned into a cenobite (like Elliot Spencer) or simply dragged to hell and tortured (like Frank Cotton)?
gpt
The cenobites are sense explorers. They choose to indulge in the greatest of sensory experiences possible. A gnawing hunger drove them to the box and after time within the labyrinth they began to yearn for more. With a malaise and despondent attitude they sought out the gifts of leviathan not for themselves but to give others sensations they no longer feel. They get pleasure through proxy of seeing others experience it as they themselves are otherwise numb to it. 

Spencer wanted to have more of it and craved enough to be elevated into the Gash. Frank wanted a more limited sensory experience closer to sexuality and dominance rather than all that the leviathan could offer. He didn't throw himself into the experience and as such wouldn't be able to enjoy it. 

The leviathan will allow new cenobites to be created if the Gash becomes too few in number but only those with that seed of craving for more can be used for this. Those elevated without the hunger will inevitably fall into baser desires that are more human and will be abandoned by the leviathan once a more suitable cenobite Candidate is found.