This plugin is for bloggers who are concerned about the search engine optimization impact of allowing comment author links on their posts. While WordPress by default applies the nofollow attribute to such links, which was thought to preserve link juice for the original site, recently Google announced a change in the PageRank algorithm. The impact is that nofollow links now leak link juice.
It also contains code for Thesis theme users to remove the redundant link on comment avatars.
There are no configuration options – just upload the plugin to your WordPress plugin directory and activate.
You may need to tweak your theme so that the new tags will appear visually like the original comment author names. Adding a bit of CSS like this should do the trick:
If you have any comments about this plugin, please make them on the release announcement post. Thanks!