Well put. We tried to take a very privacy-protective stand when building Recent News (
https://recent.io) because of the amount of personalization we do. This warrant canary is part of our privacy policy:
As of [date], we have not received any legal process or demand from any federal, state, or local government that includes a gag order. We have received no National Security Letters, civil subpoenas, search warrants, Foreign Intelligence Surveillance Act orders, grand jury subpoenas, or any other form of compulsory process accompanied by a gag order.
As of [date], we have received no legal orders requiring us to monitor users' future activities or to modify our service.
If we do receive any form of compulsory process from any government entity, we will do our best to ensure that our users' legal rights and privacy rights under the Fourth Amendment to the U.S. Constitution are protected. That includes challenging overly broad orders in court.
It is still valid, I'm happy to say, for [date] values of today.