I agree that the fact that the user kept himself or herself anonymous is highly relevant to this story.

I understand that wikipedia wants to lower the barrier to entry by allowing anonymous edits, and I have sometimes made anonymous edits out of convenience, but personally if it was me and I had had two edits reversed I would have just logged on, left an eponymous message on the talk page saying "I am confused, I keep wanting to add this information, which does not violate the guidelines, and I keep getting locked out. Help?".

Then at least the people trying to protect the victim would have had a chance to put their case forward.

There is also evidence that kidnappers DO look online for information, I seem to remember a story about a journalist pointing to his Wikipedia entry to convince his kidnappers that he was Canadian, not American? British? (can't remember what the offending nationality was) and that proved to be a factor in his release.