Here is an advice from vatsis for problems with large posts/threads - unfortunatley too late for Jessica-Alba-case:
Vatsis:
lou2005:
For 2or3 days I always get a blue screen, when editing my thread A-Z to peachy
celebs. (And blue screen says I should report the problem here...)
...
ah, found that thread (180861) in the error logs - 7 errors by far.
"String or binary data would be truncated"... something is being too
large. (..)
But since the changes are always
saved, I guess we haven't got much to worry about... just make a few
backups (copy & paste all text from Design -view and from HTML
-view to a notepad or another thread somewhere).
Scince then I do this for all the indexes I work on, which is some kind of easier as they consist only of one or a few posts.
But there have been other cases like the Sofia Vergara thread that was
deleted or changes in index links which made them unworkable that I
think keeping a safety of your most important posts is an inevitable
step...