> it would make it harder to import changes from OpenSSL
When it's a choice between making it easier to import changes or harder to import bugs, I know which one I think is more important when dealing with a security library.
I don't think you see the amount of work that would go into refactoring a project of this scale whilst keeping up with the latest patches from upstream.
I do understand the the amount of work, but that wasn't the only argument presented. It was also presented as making it harder to accept patches. Since one of the goals of LibreSSL is to start applying security best practices, and one of the reasons for its existence is the poor quality and recurrent problems with OpenSSL, keeping compatibility with OpenSSL to make it easier to accept patches should be very low on the list of priorities.
Put another way, if you forked because upstream was crap, not changing because it makes it easier to accept upstream patches is a poor reason not to change something that might benefit from it.
I tend to agree, maybe with one exception.
Would the end result of a LibreSSL refactor introduce more bugs than leaving the current process in place (with improvements)? It seems like we can't know the answer to that question until it happens so speaking definitively about either option becomes questionable.
Definitively, no, but the lack of of a definitive (or even likely) answer still makes the it a poor choice, if not in the sense of "wrong" than in the sense of "this is something that needs to be figured out based on your goals, and until you do choices based on this will not be grounded on fact" so it's poor in that it's not well grounded.
That said, the relatively poor history of OpenSSL and the relatively high quality of software that comes out of the OpenBSD project leads me to think I know what the likely outcome of refactoring code is in this particular scenario.
That is certainly true and perhaps another advantage exists from a refactor of LibreSSL: Finding unknown bugs in OpenSSL that may only be revealed during refactoring.