A technical solution to the anonymity problem would probably work just as well (assuming it wasn't backdoored), though the protections against a lawyer disclosi

A technical solution to the anonymity problem would probably work just as well (assuming it wasn't backdoored), though the protections against a lawyer disclosing their client is legal rather than technical (so the "splatter" from a company's over-reaction are more likely to be smaller). You also get the additional benefit of the company probably taking a disclosure more seriously if it comes with a law firm's letterhead (unfortunately).