User blog comment:The Milkman/Twitter Responses: Bethesda Still Having Issues/@comment-4113369-20121006233026

I've been thinking... The biggest differences between the 360 & the PS3 are RAM and file structure, correct? Bethesda could hardly claim to be the best coders around, so could the problem possibly be that additional plugins just can't be added on the PS3, and they didn't notice it before Dawnguard was being developed? Don't get me wrong, I love Bethesda, but I don't think I'd put a goof like that beyond them.

(Of course, this is all assuming that the PR guys are lying about the issues, and that the PS3 version doesn't use "update.esm". Kinda hard to know for sure, what with those damn consoles being locked up so tight)