Safe to post iOS crash logs in public?
Crash logs are safe to post in public. There is no identifying information about you in them. All of the random looking text you see are addresses of the various methods that get symbolicated by Xcode into method names. This lets the developers see the exact line of code that caused the problem.

Also know, it is harder to symbolicate crash logs that have been copied and pasted. It would be more helpful for the developers to get your crash logs in the original .crash file.
It looks like this is no longer the case, I had no problem copy and pasting a crash log and symbolicating using the latest Xcode.