Earlier quoted context omitted.
I remember when canaries were useful as a deterrent: even with an apathetic public on balance the tech community was pretty vigilant. These days Snowden is screaming into the void even as concerns HN readers, never mind that he was completely right at great personal cost the first time. I still trust Moxie, and Carmack/Palmer/etc. seem to be taking a stand, there are others, but it’s getting thin.
The main problem with canaries is that it's dead easy for a government to remove them from existence, simply issue subpoenas to every website that has one. The users could then decide to jump ship but realistically they won't.
Why can't social media platforms implement warrant canaries per user profile?