I have just disabled the disqus WordPress plugin for comments.
Installation, configuration and usage was painless (as was de-installation). The reason I chose to get rid of it regardless was mainly about comment spam.
I started receiving comments that were clearly spam. In the disqus module of my WordPress admin panel, I did not see the URL people entered (they pointed to disqus.com instead), so the spam nature of a comment was not immediately visible. The plugin also had no way of marking a comment as spam.
Guys, I’d like to use the plugin, butr you need to work on better comment spam management.