Ring signatures would be one method.

In the DT case: produce a list of N npubs that my WoT can verify work in the Nixon administration, tell your tale, then sign it with a ring signature that proves you’re one of the N npubs without revealing which one. Obviously N needs to be sufficiently high to make you feel safe.

A more generic case: make a list of N accounts that are widely perceived as having high generic Trust Scores (eg GrapeRank or some other metric), then use a ring signature using that list.