Adnan Haque (a11n)

Time for moderators and blog monitors to take rest. Let the visitor choose what they want to see in the blog. Visitor can flag unsuitable posts. After a number of flags the post status will be changed to anything you want. You can change the post status to Draft, Pending Moderation, Moderated(custom status) or send the post to trash, remove it permanently. You can also set it to do nothing if you plan something else. You can have a notification if the post is flagged number of times you will have set.
You can exclude some categories and mark some users as safe to remove the flag option from there posts.
You can track visitors by IP, Cookies and user id to prevent multiple flags. You can chose who can flag by user roles.
The plugin is css frienfly. You will be able to customize the posts by the number of time they have flagged.
More details on the documentation page after installing the plugin.

Virtual Moderator

This plugin helps to keep community blogs clean. There must be some unwanted posts if blog is open for anyone. It Lets visitors to flag those posts.

skyleft

I have used WordPress to write a personal blog for several years, probably from the freshman until after graduation. Every time I read some posts which created long time ago, I always feel that how naive I was for that time. But I can’t delete them since it’s my words. 
So, I wrote this little plug-in, you can add a small tag for different periods of time to show your situation when you created that post, to provide a better reference for the reader. Some time you write a number of technical articles or software use tutorial, may have been a long time technology has changed, you can also use this plugin to mark what has been changed. Because it is the first time to write a WordPress plugin, even I has a long experience in using wordpress, but I still not very familiar with WordPress plugin API, and also don’t know how to make this thing have much practical significance. If you have any comments, or there is a need for the needs of WordPress plugin development, all can email to me @im@andy-cheung.me, thanks!

Fleeting Time

Add some fleeting time flag to your post according to the post time

Virtual Moderator vs Fleeting Time