Installed the plugin, loved the idea and ratings.
But once installed it made it impossible to add links or images using the admin interface (when adding posts in 'visual' format). The link/unlink and image buttons would do nothing.
Also interfered with another plugin (Q&A) by causing the theme to load incorrectly. If I deactivated Q&A, the theme problem was rectified, but not the interface problem.
If I deactivate the social discussions plugin, the interface works as does the Q&A plugin without problem.