Anecdata happened 30mins after typing that answer: I disabled BT on my Macbook while I was using a Bose Soundlink Micro BT speaker which sits at the other end of the room (because I wanted to use the built-in speaker). Now after disabling my BT on the laptop, the Bose Speaker went into nagging mode, playing "Ready to connect" in 30s intervals. Had to get my ass of the chair and manually turn it off.
I mean, what is the logic behind this. Why would I go into nagging mode and tell my user every 30s that "I am ready to connect" just because the BT device disconnected? How about you do nothing, wait 5mins, and if no other device connects you go to standby?
I think it's otherwise confusing for users to know what state the device is in. Like for example take any bluetooth device that has a blinking blue light on it. What does it mean? There's probably a cultural understanding that it means it's waiting for a connection but then again you'll find many other bluetooth devices doing it other ways.
I mean, what is the logic behind this. Why would I go into nagging mode and tell my user every 30s that "I am ready to connect" just because the BT device disconnected? How about you do nothing, wait 5mins, and if no other device connects you go to standby?