shawfactor

The best way of debugging in wordpress s to use the debug.log. But if you leave debug running for long periods that log can grow MASSIVELY. This can slow your site down.
This plugin uses the wordpress cron jobs to empty the debug log once it grows beyond a certain size.
NOTE this plugin relies on wordpress cron. If that is not working this plugin will not work. But then you will also have bigger problems!
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LH Clear Debug Log by Cron

A simple plugin that clears the debug log by the cron schedule when it gets too big.

paulvgibbs

Do you get subscribers that register with your WordPress site but never post any comments. These are probably spam subscribers where someone has set up an automated piece of software to create these users.
They are a real menace and you can often tell if they are spam by looking at the email address and the registered name. Usually there is no relationship between the person’s name and the email address.
This short plugin will delete the subscriber 7 days after registering if they have not posted a comment or not submitted a post and have a role of subscriber. A delay of 7 days is included to allow time for the registered user to make their comment.
A scheduled job runs every day and checks for those type of users and deletes them.
WordPress has 5 default roles of: 
* Admininstrator – has access to all adminstrative options and features. 
* Editor – can manage and publish posts. 
* Author – can publish their own posts. 
* Contributer – can write posts but cannot publish them. 
* Subscriber – has basic functionality such as leaving comments and changing their profile. This is usually the default role that a registered user will have.
This script specifically targets subscribers as it is those that create comments.
For details of the plugin refer to web site http://www.withinweb.com/withinwebremovespam/
It uses a WordPress type CRON job to automatically run each day, hence once installed you don’t have to do anything.
You can set a debugging mode which will send out an email each time that a user is removed.
<h3>1.0.6</h3>
Minor text changes.
<h3>1.0.7</h3>
Minor text changes.

Remove Unwanted Subscribers

Remove unwanted users automatically using a CRON Job.

LH Clear Debug Log by Cron vs Remove Unwanted Subscribers