That worries me a bit. ArXiv was and is great and so useful to humanity, giving access to otherwise closed knowledge, hold by publishers cartel, that I would not like to see it is turning into a "non-profit" of OpenAI kind...
the heel turn to unlimited for profit was only possible because of their unique structure and the fact they were already selling commercial products. arxiv is not selling anything so theres no financial incentive to take over.