Well, a couple of reasons. One, as they explained there, C++ exceptions weren't very good when they wrote the bulk of their code. The second reason is that wr

Well, a couple of reasons. One, as they explained there, C++ exceptions weren't very good when they wrote the bulk of their code. The second reason is that writing exception safe code is hard in C++. Combining those two, you have code that wasn't written exception defensively having unexpected exit paths due to exceptions and now you've got bugs. It sounds like they would've included exceptions if they didn't have a legacy codebase. I'm sure that would've added a decent amount to the doc.