About two years ago, Disqus was my answer to the horrors of a few third party commenting systems I tried on Blogspot and WordPress (JS-Kit, Blogger Disqus and Intense Debate). I had high hopes that WP Disqus would be the last. But I finally threw in the towel and removed Disqus in favor of the default WordPress Comments.
Removing Disqus was surprisingly painless! I lost not one comment. Just pressed 'uninstall' on plugin settings and later deactivated the plugin.
My main problem with Disqus was also something most commentators disliked : having to login in to leave a comment with your name. Heck, even I dreaded replying to a comment if I had to log into Disqus. Sort of takes the fun out of it... Also anyone not logging in as a Disqus member, had the same faceless default and ghostly avatar!
Still there are many bloggers who love Disqus. Although I found it easy to install (and remove) in the end Disqus had a negative impact on building a more active community for this blog.
When it comes to publishing and promoting articles, removing Disqus has given me a breath of fresh air ! So keep those comments coming!