1. Remove all the extra widgets that provide "secure commenting". They just add one more step for our readers to complete. And since they just want to drop us a line or two, sometimes more steps just make people give up and drive them away. So getting rid of that, will definitely make our readers' life much easier.
2. Lose the captcha image. You can add comment moderation to ensure that you receive no spam. But adding a captcha image on top of it, only adds one more step to the process, and there's no point in that. I always say you take one for the team, check through the spam in the background and spare your visitor of that unnecessary extra step.
3. Don't use different, colorful fonts for each individual comment. This step is only creating more distraction, and our goal is to keep distraction to a minimum. Too many colors create a visually cluttered field, and people often shift away from that.
5. Don't make individual pages for comments. It's easier to use a pop up window if you need, rather than a different page. Pop ups don't load as slow as a new page.. and remember not everybody is high tech. And people love things that load faster rather than slower:)
I guess this is it for the comments department uncluttering tips today.