Originally Posted by KimJI

So one the key thing to do when you do a stunt like this, is to have a site map up and running.

Many times the bots just visit you for a few pages. IF those pages dont exists, it will be seen as a 404 error and be penalized in the next SE updates. So make sure you have a redirect that takes the user to the Sitemap instead of the 404 page or front-page - that way you will limit your loss of total amount of pages indexed on that domain.