What's interesting is Naughty Dog's original response:
https://www.naughtydog.com/blog/an_important_statement_from_naughty_dog
"We have recently read on social media that an ex-employee of Naughty Dog, Dave Ballard, claims he was sexually harassed when he worked at Naughty Dog.
We have not found any evidence of having received allegations from Mr. Ballard that he was harassed in any way at Naughty Dog or Sony Interactive Entertainment. Harassment and inappropriate conduct have no place at Naughty Dog and Sony Interactive Entertainment. We have taken and always will take reports of sexual harassment and other workplace grievances very seriously. We value every single person who works at Naughty Dog and Sony Interactive Entertainment. It is of utmost importance to us that we maintain a safe, productive workplace environment that allows us all to channel our shared passion for making games."
Naughty Dog flatout stated they have zero evidence that any allegations ever existed. Which directly contradicts his tweet:
That's why his accusation is so murky. Someone is flatout lying here...it's either Ballard or Naughty Dog.