[jwr]

> if the spec as a whole is bad, all layers of the spec are bad,

This discussion is intriguing. I wonder how many people commenting on "the spec" have actually read any part of "the spec" in question (I have).

And since we're posting anecdata: I can't think of a single problem I've had with a Bluetooth device in recent years, and I use a lot of Bluetooth devices. So this kind of generalizing doesn't help.

As a counterpoint, every embedded device that uses Wi-Fi promises a world of pain. The bizarre pairing procedures, connecting to temporary access points, entering passwords — it's all a combination of pain, timeouts, problems, and resets. But that doesn't lead me to state that "wifi is bad, the spec as a whole is bad, all layers of the spec are bad, the implementations are all bad".