As used in common speech, whistleblowing also applies to exposing unethical or dangerous behavior, even if it is technically legal.

> Anyone who has worked in tech for any amount of time has signed an NDA.

Just because something is ubiquitous doesn't mean it's ok.

Not that NDAs are always bad, but they should have limited scope, and maybe expirations.

And blanket non-disparagement agreements that prevent employees from ever saying anything bad about their employer are clearly bad.