One of the reasons I love this plugin is because there are some topics I won't discuss on my blog openly like work. This plugin provides me that ability without turning to a site like Livejournal OR using the WP password option. The issue I have with the password option on WP is that it is really not that secure. You have no idea who is giving out your password or to whom. WP Sentry affords the blog owner the ability to control who does and does not see their blogs without having to rely on the integrity or honesty of others. I would highly recommend this to any user who wants some semblance of privacy on their blog.