I didn't read the essay [1] in full but the answer to the question of "why now" is the OpenAI-HuggingFace incident. And the NYT article mentioned Jacob Coxon quitting...

The target audience of the essay seems to be pressuring OpenAI. I don't know if OpenAI will listen.

[1] https://darioamodei.com/post/we-must-pace-the-frontier

[dead]