jammycakes

Three Strikes and You’re Out examines your Bad Behavior logs and your WordPress 
spam queue and closes comments on all blog entries across the board to IP 
addresses that have reported three or more attempts at mischief over the past 
seven days.
It also has an additional logging feature and an API that allows other plugins 
to register certain events as being mischievous.
<h3>Configuration</h3>
By default, Three Strikes and You’re Out closes comments right across the board 
on your blog to any IP address that has attempted any mischief three or more 
times in the past week. You can change these by editing the two defined 
constants at the top of the plugin file, just below the copyright notice. There 
are three such defines:
<ul>
<li><code>THREE_STRIKES_LIMIT</code> is the number of bad hits at which to block comments.</li>
<li><code>THREE_STRIKES_TIMEOUT</code> is the time in seconds after which bad hits are no 
longer considered.</li>
<li><code>THREE_STRIKES_BB_STRICT</code> indicates that you should consider any “strict” 
events recorded in the Bad Behavior log. These are events that are blocked when 
Bad Behavior is using the “strict checking” option, but would be ignored 
otherwise.</li>
</ul>
<h3>The Three Strikes API</h3>
This plugin includes a number of hooks that allow other plugins to communicate 
with it. These are implemented as actions and filters, so if Three Strikes is 
not installed, your plugin will continue to function.
Full details can be found at
http://www.jamesmckay.net/code/three-strikes/api/
<h3>Redistribution</h3>
Copyright (c) 2007 James McKay 
http://www.jamesmckay.net/
Permission is hereby granted, free of charge, to any person obtaining a copy 
of this software and associated documentation files (the “Software”), to deal 
in the Software without restriction, including without limitation the rights 
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 
copies of the Software, and to permit persons to whom the Software is 
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in 
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 
SOFTWARE.
<h3>Reporting bugs</h3>
When reporting bugs, please provide me with the following information:
<ol>
<li>Which version of Three Strikes And You’re Out you are using;</li>
<li>Which version of WordPress you are using;</li>
<li>The URL of your blog;</li>
<li>Which platform (Windows/IIS/PHP or Linux/Apache/MySQL/PHP) your server 
is running, and which versions of Apache and PHP you are using, if you 
know them;</li>
<li>The steps that need to be taken to reproduce the bug;</li>
<li>If possible, any relevant information on other plugins or configuration 
options that you may think appropriate.</li>
</ol>
See the following blog entry for further guidance on troubleshooting and 
reporting problems:
http://www.jamesmckay.net/2007/04/how-to-report-issues-with-wordpress-plugins/
<h3>For more information</h3>
For more information, please visit the plugin’s home page:
http://www.jamesmckay.net/code/three-strikes/
The Mercurial repository and issue tracker for this plugin are at:
http://bitbucket.org/jammycakes/three-strikes/

Three Strikes and You're Out

Closes comments across the board to IP addresses that are behaving badly.

MikesPickz

MP Spam Be Gone is the simplest, most effective Spam blocker without difficult CAPTCHA responses needed by the user. This plugin was inspired by some of the best Anti-Spam plugins available on WordPress.
Inspirations: 
Spam Free WordPress by Todd Lahman, LLC 
Growmap Anti Spambot Plugin by Andy Bailey 
Simple Trackback Validation with Topsy Blocker by Tobias Koelligan
This plugin has aspects from all of the above mentioned plugins to form the most complete and dead simple Anti Spam plugin on WordPress. This plugin doesn’t write anything to your database while preventing comment spam and trackback spam.
From Growmap Anti Spambot Plugin, I used the concept of having a checkbox display to the user in order to prevent automated Spam. To me this is the best way (and least intrusive) to completely prevent automated spam from ever even being written to the database in the spam que. It is physically impossible to get a false positive, since you either checked the button or not. The flaw with this plugin is that it does not work with Javascript disabled.
To combat that flaw, I use the copy and paste password fields from the Spam Free WordPress plugin. These fields are in a <code><noscript></code> tag, and only appear if Javascript is disabled. Unlike, the Spam Free WordPress plugin, these passwords are generated on the fly and never stored in the database.
These plugins primarily stop comment spam. In order to stop trackback spam, I added the IP address check, URL check, and Topsy check functions from Simple Trackback Validation with Topsy Blocker. If a trackback is identified as spam because of the IP address or Topsy, it is deleted and never written to the database. If a trackback is identified as spam because of the URL, it is marked as spam and sent to the Spam que. The reason that these are not automatically deleted, is because it is possible that the referring page is using a shortlink and therefore the full URL would not appear on the page in the first place.
When combined, this plugin will stop all automated spam and trackbacks.
It is intended to replace the above plugins.
You can’t find a plugin simpler than this – set it and forget it. No options = no modifications to the database.

MP Spam Be Gone

MP Spam Be Gone is the simplest, most effective Spam blocker.

Three Strikes and You're Out vs MP Spam Be Gone