Jay Allen notes a couple of bugs and an overzealous regexp in the default distro of MT-Blacklist.
I hope Mr. Allen takes the time over the next week to set up a board to centralize user-experience, bug reports, and the like.
The install here went smoothy, albeit I had to install Storable.pm (‘sudo CPAN’ and then ‘install storable,’ for those undergoing the same head scratching I was for a moment or two, wondering why ‘install Storable.pm’ was failing).
I was concerned on being able to get in to the blacklist admin UI apparently without logging in, but was mistaken – Blacklist uses your MT login info.
I believe I will still install the captcha-style mod as well, but I haven’t taken the time to disentangle the issues with getting GD to install.