What does this mean? Most blog software had built in code that block search engines from follow links in comments- it was done to help stop spam- much like the way nofollow links were done on wikipedia.

The side effect of that is people comment less- one of the reason people comment is to get link back to their own site.
By disabling “nofollow” you encourage people to post on your site and promote discussion. I have some pretty heavy duty spam filters set up and manually approve comments so crap doesn’t get through.

I am pretty liberal with approving comments if they are not spam and are topic related. Your links will also be followed both by readers and search engines.

For more information on the “U Comment I Follow” movement- visit http://randaclay.com/blog/i-follow/