Well, this is a good step taken by the admin to reduce spam. I shall request you to include all the new changes in your faqs also. So that new users become aware of that when they sign up for the website. In the absence of that new users may indulge in such practice. Please introduce an faq about signature also Rather I shall suggest you to discontinue the feature of signature. That will be better. Please include your new policy about getting the contents from wikipedia also in the faq section.