I think, perhaps, I check in irregularly, but still frequently :-).
The crash is in a atypical thread (not thread 0) because it is in the [background] PDF export, which takes place in a different thread.
Unfortunately it's not very enlightening.
It's in the guts of AdobeBIB, about which I have recently been advised: "Bravo Interface Binder is a low level framework developed by coretech group that handles first, low level mechanics of function calls between components and second, patterns that one component should employ when using services from another component."
Have you tried exporting to IDML and trashing your preferences?
If so, then I think the next step is Divide and Conquer.
Working with a copy of your document, delete half the pages, and see if hte problem follows. Repeat until you find the source.
Could you share a copy of your file with me?
