You're getting downvoted, but you are at least mostly right.

With video and audio deep fakes we are rapidly approaching a world where anything can be trivially faked by anyone. As a result, anonymous information is becoming worthless. Unless the provenance and chain of custody of a piece of evidence is precisely known, it has a high and growing likelihood of being bullshit.

I do think there are roles for anonymity, but getting "the truth" out is not one of them.

What is far more important is selective privacy and the ability for individuals to define their own envelope of visibility and trust.