>I'm also slightly sympathetic to the idea that these user studies / telemetry can be used to improve FF. By abusing the feature, they encourage people to disable it, which harms Firefox if you take the position that the data gained by telemetry is useful. I certainly no longer have it turned on.

Count me in here... I was opposed to this feature and commented about making it Opt-in when it was introduced, however I did leave it enabled on a few of my systems believing it would only be used to improve the technology of the browser.

It is now (or will be soon) disabled on every system I manage...

Good Job Mozilla...