[mopoke]

I'm not clear on how this adds anything that you wouldn't get in the web server layer (e.g. mod_access) or by using a firewall.

[a1g]

This just adds another layer of security on top of your application. Sure you can use mod_access instead or alongside this system.

Some developers on shared hosting servers don't have the option to change apache/httpd server settings.

This is just a tool for those who find it useful in there situation. I personally wrote it because I needed another layer of security.