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IIRC, rapid progress in Robocup came because each year people published their code. This acted as a ratchet: the code from the best team in one year became the basis for the next year. So even "leaderboard chasing" improves with open code.
Indeed, enforcing code release will make leaderboard chasing even easier. That will allow us to make quick progress and community can move on to deeper and harder problems. Now we are spending enormous time+energy+contributing to climate change to replicate broken algorithms.
It could be that publishing code promotes exploitative research, incrementally improving on last year's best, at the cost of radical explorative research that must write its own ab initio code. I don't know how serious a concern this is.
I commented on that. Barrier to entry for such incremental research becomes low, so it won't be considered innovative. Also, academics can compete on a more equal footing. We can quickly figure out which algorithms are brittle and move to deeper questions
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