Well Spammer submit their link because they give them backlinks, so forget about that they remove links from your site. Now you should make some changes to your site. For example you should restrict person who is submitting to submit only valuable links. And after you should have authority to block them and change their link and article. And last but least, you should give other person to review any user to give comment and if it is spam then to block them as a spammer.
Originally Posted by marthavac