TypeKey, the new comment authentication system used on the blog is proving to be slightly more difficult to use than anticipated. We would like to open up comments, but the Perl-based blacklist plugin we used (MT-Blacklist) is not compatible with the current version of the blog. If you are expert with Perl, and would like to setup an anti-spam solution or modify our blog installation, please let me know. Thanks!
Source link: http://archive.mises.org/2664/blog-in-need-of-perl-pros/