The whole premise of a warrant canary is you cannot force speech. Therefore the alarm portion of it goes off through not being updated and users noticing. If it's not updated regularly then users have no way of knowing at what point they should be concerned.

Therefore the only way to operate such a canary is with scheduled, regular, expected updates.

At what point will hexbears be alarmed? 6 months? 12 months? At what point does it go off? That's a real question to have about any alarm but this type especially.

In a time of war with all that's going on that question becomes more important given the anger many are expressing here and the danger they'd be in potentially.