In fact most of the signature campaigns now don't count low quality posts. So the signature spams also won't be counted. I hope that people can think before they post.
Are you sure about that? I think managers do check the posts but I don't think all managers check all posts and campaigns using bots will count spams and it may not count substantial posts. Most bots check the number of words in user's post which is wrong to check whether a post is substantial or spam. Some spams may look like substantial post. It is hard to know "real" intention of the user. I do think signature campaings increase spams.
