Here are potential problems for crash-related bugs:

1. My machine is a 2009 NVIDIA-based MacBook Pro 17"

I don't think Apple is testing older machines with the kind of effort they used to. We used to test sleep-wake cycles into the thousands and even one failure was not acceptable. This machine very often will not come out of sleep properly. Closer to 1 in 10 than 1 in 5000.

2. I use the machine in clamshell mode a lot.

3. I have replaced the default HD with an SSD. And replaced the optical drive with the original HD.

4. I mount and try to keep a few AFP shares accessible all the time. Mountain Lion randomly drops them while the machine is asleep (or when it wakes - this can cause all kinds of momentary process freezing (which can last for a few minutes).

I see Mountain Lion issues reported by customers all the time, so I also have perspective from others. The many Mail bugs I have documented don't have anything to do with hardware - maybe I'll post them again.