User blog comment:G0LD3NF1RE/Dawnguard encounters issues with Playstation/@comment-4976111-20120908002330/@comment-5469467-20120908003951

You're right, and the voice of reason to boot. Bethesda is not doing any of this on purpose. They're trying to get Dawnguard out on PS3, but there are technical problems preventing them from doing so. If it's taking this long to fix them, they must be very severe. Hopefully they can either fix up Dawnguard for release, or at least use the lessons learned to release Hearthfire on PS3.