I fully understand the idea behind the rel=”nofollow” attribute on links to try and prevent comment spammers from actually gaining any search engine ground. Does it really make sense for your normal readers who leave relevant comments on your site? I don’t believe so.
I’ve installed a new plugin called DoFollow which gets rid of the nofollow tag on links within post comments. The plugin actually allows you to configure a number of days to wait on new comments to remove the nofollow tag if you so wish. I’ve left mine at 0 since I tend to keep up on eliminating spam pretty aggressively.
This has become sort of a movement among many blogs to try and increase reader interactivity. Designer Randa Clay came up with some basic logos to use so that your readers can be informed that their links will be a little more valuable.