Do you think he doesn’t know that 9to5mac published the information he provided to them?
We can see he has very likely violated the NDA.
By not mentioning this, and presenting himself as just another developer trying to make nice apps, we can see that he clearly has the capacity to be disingenuous. Most developers don’t reverse engineer Apple software and supply the results for publication.
We also know that if Apple froze people’s accounts for failing to sign a Brazilian legal form (or similar), it would affect a lot of people and we’d know it was a real possibility. But they don’t.
We don’t know anything with 100% certainty, but we easily have enough certainty to make it obvious that failing to mention his reverse engineering practice is a major red flag for his credibility.
Why is distributing information covered by the NDA ok, but screenshots not?
Define "press".
> Why is distributing information covered by the NDA ok, but screenshots not?
Because that's what the license agreement says. Information about prerelease software is OK to discuss, sharing screenshots is not.