Jared Atchison

This plugin gives you the ability to disable specific user accounts via a profile setting.
Once installed and activated, a checkbox appears on the user profile settings (only for admins). When checked, the users account will be disabled and they will be unable to login with the account. If they try to login, they are instantly logged out and redirected to the login page with a message that notifies them their account is disabled.
This can be useful in a few situations.
<ul>
<li>You are working on a site for a client who has an account, but do not want him to login and/or make changes during development.</li>
<li>You have a client who has an unpaid invoice.</li>
</ul>
<a href="https://github.com/jaredatch/Disable-Users/" rel="nofollow ugc">This plugin is on GitHub!</a> Pull requests are welcome. If possible please report issues through Github.

Disable Users

This plugin gives you the ability to disable specific user accounts via a profile setting.

Samir Shah

This plugin disables all RSS/Atom/RDF feeds on your site. It is useful if you use WordPress purely as a content management system (and not for blogging). All requests for feeds will be redirected to the corresponding HTML content.
There are a couple of options to tweak the plugin’s behaviour – go to <code>Settings -> Reading</code> to see them.
If you come across any bugs or have suggestions, please use the plugin support forum. I can’t fix it if I don’t know it’s broken! Please check the <a href="https://wordpress.org/extend/plugins/disable-feeds/faq/" rel="ugc">FAQ</a> for common issues.
Want to contribute? Here’s the <a href="https://github.com/solarissmoke/disable-feeds" rel="nofollow ugc">GitHub development repository</a>.

Disable Feeds

Perfect

Disables all RSS/Atom/RDF feeds on your WordPress site.

Disable Users vs Disable Feeds