diary_comment_score = self.diary_comments.inject(0) { |s,c| s += c.body.spam_score }
score = self.description.spam_score / 4.0
+ score += self.diary_entries.where("created_at > ?", 1.day.ago).count * 10
score += diary_entry_score / self.diary_entries.length if self.diary_entries.length > 0
score += diary_comment_score / self.diary_comments.length if self.diary_comments.length > 0
score -= changeset_score