A number of answers for the question Proper Use cases for Android UserManager.isAGoat() were deleted, such as this one by casperOne. (I'm not sure who is responsible for the deletions of the other answers which where popular and I feel should have stayed)
I feel that this is an inappropriate action for the moderator to have taken. A moderator may disagree with a post, but it is not grounds for deletion. That is what the up/down vote is for.
Why was this (and other more popular) posts deleted, and is that an appropriate action for a moderator to take?