I think a more reliable solution would be to have purpose-built scraping endpoints that take an API key. The endpoints could be defined in such a way to allow for checksum-based data reconciliation. That way, whenever there are outages (Cloudflare or otherwise) the missing data could be correctly retrieved after the fact, and there would never be any doubt as to whether you're one-to-one with the master data. It wouldn't be easy to pull off, but I'm pretty confident I could safely build something like this (SMF programming is truly painful, but now that I've spent the effort learning it, it would be gratifying to put those skills to good use).

Off-topic: I can imagine a set of new endpoints being used to power a Bitcointalk mobile app. Also, I can imagine the same being used as a way to bootstrap the new forum software (as opposed to a point-in-time data migration) which might allow for the old forum and the new one to happily co-exist for a time.