It somehow strange how bloggers take email subscription for granted,The web is so large that you can't afford to loose your visitors, One of the best way to make your website available to the world is to make your articles and blog posts available or syndication which mean visitors will be able to subscribe to your blog contents instead of having to visit your site directly to get the latest info and updates.
source : http://www.codingsavvy.com/2015/06/engaging-visitors-to-your-website-via.html

After losing your site visitors, it is difficult to get come back theirs. It is a way that you should post good content in your site. You can more information from this great blogging sites - http://bloggermaking.com/ .

Can my visitors at http://forum.ejaworld.cf really come back, because my traffic was formerly at a different domain name