Thanks to dP's heads-up, I've updated the Feed Statistics plugin for Wordpress to 1.1.2 with a fix for accurate counting of subscribers via LiveJournal.

To install this plugin, download the zip file of the latest version here, and overwrite feed-statistics.php in your blog's wp-content/plugins/ directory if you downloaded an earlier version. If you're downloading it for the first time, just copy it to that directory and activate it from the Plugin administration menu.