This just popped up:
Notice that the author has 26 points of reputation, so he's not about to lose much. Probably, this will get deleted pretty soon (I instantly flagged it as spam), but other users are still downvoting him.
Obviously, he has a computer security problem and his account should be locked; however, once he regains exclusive access to his account, he might find himself in a situation where his reputation was damaged due to spam flagging. How does SO deal with honest users whose accounts get hijacked?