> DNSSEC failures need to be louder.

Full ACK. As a part of this, DNSsec validation needs to be as close to the client app as possible and reasonable; definitely never off-host. (Caches can do additional validation, but that makes the error reporting complicated.)

corollary: the AD bit should never be relied on on anything actually on the network. Maybe on localhost, but even there it's questionable in UX results.