Fedora updates much quicker to newer versions of packages, specifically in our case PHP. So our webserver is running Fedora, and or database server, MySQL, is running CentOS 5.2.
The nitty gritty is that the CentOS base installs PHP 5.1.6, but we use features only in PHP 5.2 and greater.
Yeah I agree, the fact that an HR person can easily type in your e-mail and get all your personal details is a bit much. But, with that said, you honestly should be using a different e-mail address on your job applications than your personal e-mail.
The nitty gritty is that the CentOS base installs PHP 5.1.6, but we use features only in PHP 5.2 and greater.