It's worse than a prisoner's dilemma. In a prisoner's dilemma, if both parties cooperate, then they get a higher joint reward. But when some academics cooperate

It's worse than a prisoner's dilemma. In a prisoner's dilemma, if both parties cooperate, then they get a higher joint reward. But when some academics cooperate to do something like make a new journal, they don't get any reward in terms of tenure/promotions, which depend 99% on publications in high quality venues as assessed by university-level entities and external reviewers.