Since when is it the users responsible to find bugs? This isn't beta software. It is nice if a user finds and reports bugs in pre-release software, but we can't rely on them to do so.
I suspect if it was any software other than Apple you wouldn't be blaming the user.
I have encountered precisely the same problem on a 2008 era MacBook Pro. While that problem is very well known (and much more general- it is triggered by any heavy graphics card usage), it manifests exactly like this. In my case the faulty GPU ended up having faulty NVRAM onboard.
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So basically he was given a developer preview, found a serious bug, and failed to report it. Classic case of "someone else will do it"
Really, you're going to blame the user?
Since when is it the users responsible to find bugs? This isn't beta software. It is nice if a user finds and reports bugs in pre-release software, but we can't rely on them to do so.
I suspect if it was any software other than Apple you wouldn't be blaming the user.
Do you read things before you reply to them?
I have encountered precisely the same problem on a 2008 era MacBook Pro. While that problem is very well known (and much more general- it is triggered by any heavy graphics card usage), it manifests exactly like this. In my case the faulty GPU ended up having faulty NVRAM onboard.