[stoppingdown]

Open source such as dcraw is sort of last-resort warranty, but it's not enough. First because it's just the bare-bones. But even if it had a full UI, etc... Once you have to abandon Lightroom with tens of thousands of post-processed photos, including their settings, they are simply not portable. You have all the data in the XMP, but e.g. vibrance=+7 has a meaning for Lightroom, not for any other application. Unless somebody writes a really well crafted and precise conversion tool (and assuming that all the post-processing has a precise mapping in the destination software). It's the pitfall of RAW + the lack of a complete, usable open source tool.