This plugin will add a new setting on each topic where a post count can be entered to view that topic. Members below the set post count will not be able to read that particular topic. This can be useful if you want to keep the lurkers away from certain topics.
Topic starters are not affected by this restrictions on their own topics. You can exclude members of a particular group from this restriction too. To do that, click the Edit button of the newly installed plugin and you will be taken to the plugin 's Settings page where the excluded groups are listed..
To install this plugin, log in to your Admin Panel, go to System->Plugins, click the Install New Plugin button and import the plugin 's xml file.
To configure it, go to the topic where you want to add the post count restriction, click the Moderation Action link and the Posts link. There you can add the post count number restriction. Only users with the Edit Topics permissions will be able to set the post count restriction.
Exclude Groups. (Exclude the group, or groups that you do not want to be affected by the restriction.)