From the article:

> Two YC partners sat Altman down last year “and told him, ‘Slow down, chill out!’ ” another partner, Jonathan Levy, told me. “Sam said, ‘Yes, you’re right!’—and went off and did something else on the side that we didn’t know about for a while.”

Seems consistent with the original "leadership transition" announcement:

> Mr. Altman’s departure follows a deliberative review process by the board, which concluded that he was not consistently candid in his communications with the board

Has any more detail surfaced since then about what specific information he (allegedly) withheld from the board?