I just destroyed a spam user, and noticed that one of their posts, which is to this question:

http://stackoverflow.com/questions/2494840/require-anonymous-user-to-register-to-add-content-type

Is the **seventh** spam answer to be deleted. I looked at the question and noticed it wasn't automatically protected by Community♦ already, so I've gone ahead to protect it myself.

Why wasn't this question automatically protected? According to [this feature request](http://meta.stackexchange.com/questions/89532/automatically-protect-questions-with-three-or-more-low-rep-user-deleted-answers), a question is auto-protected after three answers from new users are deleted. Did the accounts responsible for the other spam answers somehow escape the low-rep threshold?