This one in particular.
Got edited again to include an answer that was given via email, purportedly by the author of the article from which the question stemmed.
At that point I decided to help it being reopened (there where 3 votes already), and I added:
ok, I'll reopen it. please post that as an answer and remove it from the question
Now there is another answer posted, and the email answer is still in the body of the question. The new answer was accepted, meaning that the asker has accessed the site and seen all comments and notifications.
What should we do? Revert the edit? Re-close? Delete? Why?